CN101017309A - Image blur correction device and camera - Google Patents

Abstract

The invention provides an image blur correction device and camera equipped with this image blur correction device. The image blur correction device 400 includes a pitching movement frame 405 , a yawing movement frame 408 , and a third group frame 462 . The pitching movement frame 405 supports a third lens group G 3 included in an optical system for performing image blur correction. The yawing movement frame 408 supports the pitching movement frame 405 to be movable in the pitching direction perpendicularly intersecting a second optical axis A 2 , within a plane perpendicularly intersecting the second optical axis A 2 . The third group frame 462 supports the yawing movement frame 408 to be movable in the yawing direction along an arc whose center is a rotational axis A 3 , within a plane perpendicularly intersecting the second optical axis A 2. The present invention is to provide the image blur correction device and camera while preventing a decrease in image blur correction performance, and the size in any direction perpendicularly intersecting the optical axis of the light incident also needs to be miniaturized.

Description

Image blur correction device and camera

Technical field

The present invention relates to image blur correction device and camera, relate in particular to and drive the camera that the revisal lens carry out the image blur correction device of image blurring correction and possess this image blur correction device.

Background technology

In recent years, use imaging apparatuss such as CCD (Charge Coupled Device) or CMOS (ComplementaryMetal-oxide Semiconductor) sensor that optical imagery is transformed to electric signal and electric signal digitizing and the digital camera that writes down are popularized.In such digital camera, not only require the high pixelation of CCD or cmos sensor etc., and the camera lens mirror bucket (レ Application ズ lens barrel) that makes optical imagery be imaged on these imaging apparatuss is also required high performance.Particularly, require to have carried the camera lens mirror bucket of more powerful zoom-lens system.

On the other hand, in the digital camera field, there is requirement in order to improve portable performance to the main body miniaturization.Thus, require to possess the miniaturization that is considered to the main body miniaturization is contributed the camera head of bigger camera lens mirror bucket and imaging apparatus.When such camera head is carried out miniaturization, thereby proposed in light path midway with the scheme of the so-called refractive optical system (flexing optical system) of the miniaturization of zoom-lens system warpage implement device under the state that does not change optical path length.

In addition, in the patent documentation 1, disclose and used catoptron to come the refractive optical system of warpage light path.Particularly, patent documentation 1 disclosed camera lens mirror bucket possesses the 1st lens combination and the 2nd lens combination at the object side of catoptron in turn from object side, possesses the 3rd lens combination and the 4th lens combination in the imaging apparatus side of catoptron in turn from the catoptron side.The 1st lens combination is fixed.The 2nd lens combination and the 3rd lens combination can move along optical axis direction respectively, and the coordination by them constitutes zoom-lens system thus.The 4th lens combination is to focus on to adjust to use lens.

In addition, in the patent documentation 2, the refractive optical system that utilizes prism to make the light path warpage is disclosed.Particularly, patent documentation 2 disclosed camera lens mirror buckets have lens combination at the object side of prism.Lens combination can move along optical axis direction between use location and stowed position.And removable prism is to guarantee the harvesting space when lens combination is positioned at stowed position.

In addition, in the patent documentation 3, the structure of the lens combination of refractive optical system use is disclosed.

But,, require further to improve in order to satisfy raising simultaneously to the requirement that realizes high power zoom lens system system and realization miniaturization.

Particularly, in patent documentation 1 and patent documentation 2 disclosed structures, it is difficult that the miniaturization of implement device constitutes powerful zoom-lens system simultaneously.Also have,, also exist unexposedly to be used for the structure of implement device miniaturization and to make the unclear problem of structure of concrete device even adopt patent documentation 3 disclosed lens arrangements.

Also have on the other hand, generally speaking, under the situation camera head miniaturization or that possess powerful zoom-lens system, requiring to prevent to shake etc. with hand is the vibration (flating) of the image of being photographed that causes of main cause.

Figure 20 is the exploded perspective view (with reference to patent documentation 4) of the image blur correction device of prior art.In the image blur correction device shown in Figure 20, the 2nd lens combination 101 is kept by lens mount 102, and lens mount 102 is movably supported by the leading axle 103 that moves of guiding vertical direction (ピ Star チ Application グ direction) and yawing moment (ヨ one イ Application グ direction).In addition, lens mount 102 be provided be used for lens mount 102 vertically, yawing moment the coil 104a, the 104b that drive.Fixing base 105 is provided with relative with coil 104a, 104b respectively magnet 106a, 106b.By to coil 104a, 104b energising, on direction separately, produce driving force, on vertical direction and yawing moment, drive the 2nd lens combination 101 thus.The vibratory output of camera lens mirror bucket is detected by angular- rate sensor 107a, 107b, according to this detection signal coil 104a, 104b is switched on, thereby carries out image blurring correction.

[patent documentation 1] spy opens flat 11-258678 communique

[patent documentation 2] spy opens the 2003-169236 communique

[patent documentation 3] spy opens the 2004-102089 communique

[patent documentation 4] spy opens 2000-75338 communique (the 4th figure)

[patent documentation 5] spy opens flat 7-5514 communique (Fig. 6, Fig. 8)

In the camera head that has carried image blur correction device, also there is requirement to the camera head miniaturization.In order to respond this requirement, in the existing image blur correction device that camera head carried, carried out reducing the trial of the size on the optical axis direction of the light that incides image blur correction device.

On the other hand, begin to seek image blur correction device is carried in various camera heads.At this moment,, not only require the compact in size of the optical axis direction of image blur correction device in order to improve the design freedom of camera head, and the compact in size on any direction of requirement and light shaft positive cross.For example, described image blur correction device is being carried under the situation of camera head with refractive optical system, when the light exit side at catoptron or prism carried existing flating device, the camera head size maximized on the direction vertical with the optical axis of the light that incides image blur correction device.Just, camera head size (camera head thickness) maximizes on the optical axis direction of the light that incides catoptron or prism.This is because in existing image blur correction device, will drive 2 drive divisions of image blurring correction with the revisal lens on vertical direction, yawing moment, and being configured in the revisal lens is that the center isolates on the position of 90 degree.

In addition, in sum, in the existing image blur correction device, be provided with leading axle 103, vertical movable stand and deflection movable stand can directly be advanced on vertical direction and yawing moment.For this reason, need the space that is provided with of leading axle 103, thereby hinder the miniaturization of image blur correction device.

In addition, be not limited to have the camera head of this refractive optical system, carry the image blur correction device of the compact in size on any direction with light shaft positive cross, realize the miniaturization on any direction of camera head, become and improve the main cause of client the demand force of camera head.

So, in order to realize the further miniaturization of image blur correction device, the turning axle that has proposed to dispose in the mode according to the optical axis that is roughly parallel to the revisal lens is the scheme (in addition, with reference to citing document 5) that the center rotates the image blur correction device that drives the revisal lens.Figure 21 and Figure 22 are the exploded perspective views of the image blur correction device of prior art.

Image blur correction device shown in Figure 21 is mainly by the bracing frame 15 of fixing revisal lens 16, keep the sway brace 13 of bracing frame 15 and keep the mirror bucket 11 of sway brace 13 to constitute in rotatable mode can directly advance mode.In this image blur correction device,, drive sway brace 13 along the direction rotation that with axle 45a is the circular arc at center with respect to mirror bucket 11 by permanent magnet 45 that is installed in sway brace 13 and the coil 46a that is installed in mirror bucket 11.By permanent magnet 47a, 47b that is installed in bracing frame 15 and the coil 49 that is installed in sway brace 13, with respect to sway brace 13 with the direction of light shaft positive cross on drive bracing frame 15.By these structures, with the face of light shaft positive cross in revisal lens 16 are moved on vertical direction and yawing moment.

In addition, image blur correction device shown in Figure 22 is mainly by the bracing frame 15 of fixing revisal lens 16, keep the sway brace 13 of bracing frame 15 and keep the mirror bucket 11 of sway brace 13 to constitute can directly advance mode in rotatable mode.In this image blur correction device, by coil 62y that is installed in sway brace 13 and the permanent magnet 63y that is installed in mirror bucket 11, with respect to mirror bucket 11 with the direction of light shaft positive cross on drive sway brace 13.By coil 62p that is installed in bracing frame 15 and the permanent magnet 63p that is installed in sway brace 13, with respect to sway brace 13 with the direction of light shaft positive cross on drive bracing frame 15.By these structures, with the face of light shaft positive cross in revisal lens 16 are moved on vertical direction and yawing moment.

In Figure 21 and the image blur correction device shown in Figure 22, drive a side bracing frame along the direction that with the turning axle is the circular arc at center.Thus, the friction force when bracing frame drives reduces, and can realize having the drive division miniaturization of coil and permanent magnet.In addition, when comparing with the image blur correction device of described patent documentation 1～4 record, that has omitted a side directly advances to use leading axle.For this reason, can make the guiding mechanism miniaturization.That is to say,, make further miniaturization become possibility according to Figure 21 and image blur correction device shown in Figure 22.

But, in Figure 21 and the image blur correction device shown in Figure 22, be in fear of the reduction of image blurring correction performance.Particularly, in the image blur correction device shown in Figure 21, be used to make the driving force of revisal lens 16 rotations to act on sway brace 13, but do not act directly on the bracing frame 15 of fixing revisal lens 16.In addition, in the image blur correction device shown in Figure 22, the driving force that is used to revisal lens 16 are directly advanced acts on sway brace 13, but does not act directly on the bracing frame 15 of fixing revisal lens 16.For this reason, because the dimensional accuracy of the part that sway brace 13 and bracing frame 15 link, thereby make the lens holding member not remain on the position of expectation sometimes.Thus, the anxiety that has the positional precision reduction of revisal lens.

Like this, in case realize miniaturization, and have the anxiety of image blurring correction performance reduction.

In addition, in the image blur correction device of patent documentation 1～4 record, for example fix leading axle by bonding.For this reason, in the manufacture process of image blur correction device, need the coating and the drying operation of bonding agent.As a result, it is numerous and diverse that manufacturing operation becomes, and manufacturing cost is increased.

Summary of the invention

Problem of the present invention is to provide a kind of image blurring correction performance that not only prevents to reduce and the image blur correction device of Miniaturizable and the camera that possesses this image blur correction device.

Another problem of the present invention is to provide a kind of manufacture method that can realize the image blur correction device that manufacturing cost reduces.

The 1st image blur correction device that relates to of invention is to be used for the flating that causes because of rocking of camera is carried out the device of revisal, possesses: lens holding member, the 1st holding member, the 2nd holding member, directly advance with drive division and rotation drive division.The fixing revisal lens that are contained in order to carry out image blurring correction in the optical system of lens holding member.The 1st holding member with the lens holding member movably mode it is kept, this lens holding member can along with the face of the light shaft positive cross of the light that incides the revisal lens in the side that promptly directly advances in the sense of rotation of circular arc that edge in direction and the face is the center with the turning axle that is roughly parallel to optical axis of any direction move.The 2nd holding member with the 1st holding member movably mode it is kept, the 1st holding member can along directly advance and sense of rotation in the opposing party move.Directly advance to use drive division, in order to drive the lens holding member and the lens holding member to be applied driving force along directly advancing direction.The rotation drive division is in order to drive the lens holding member and described lens holding member to be applied driving force along sense of rotation.

In this image blur correction device, or relative the 2nd holding member of the 1st holding member is that the center is rotated with the turning axle, or relative the 1st holding member of lens holding member is that the center is rotated with the turning axle.For this reason, need be corresponding to the axle of the guiding usefulness of sense of rotation.Thus, in this image blur correction device, can realize the compact in size of the direction vertical with directly advancing direction.

In addition, in this image blur correction device, to the lens holding member of fixing revisal lens by directly advance with and rotation directly apply driving force with drive division.For this reason, the situation that does not directly act on the lens holding member with the driving force of two drive divisions is compared, and can prevent the reduction of the positional precision of revisal lens, thereby can prevent the reduction of image blurring correction performance.

In sum, in this image blur correction device, not only prevent the reduction of image blurring correction performance, and make miniaturization become possibility.

The image blur correction device that the 2nd invention relates to also possesses the rotation position detecting element in the device that the 1st invention relates to, detect the position of the lens holding member on the sense of rotation.Rotation has the rotation magnetite with drive division.Rotation is with the flux density distribution of the sense of rotation of magnetite, comprises that rotation that magnetic density changes with roughly certain ratio is with using the zone.When optical axis direction is observed, in the movable area of lens holding member, exist rotation can use the regional consistent state of center line with the rotation usefulness on the sense of rotation with the inspection center of position detecting element.

Thus, be easy to the used zone that the movable range with the inspection center of position detecting element is included into magnetite, thereby can prevent the reduction of the position detection accuracy of sense of rotation.

The image blur correction device that the 3rd invention relates to, in the device that the 2nd invention relates to, when when optical axis direction is observed, under the rotation state consistent with the center line that can use the zone with the inspection center of position detecting element and the rotation on the sense of rotation, the rotation on the sense of rotation is used and can be used regional centerline direction and directly to advance direction roughly consistent.

At this moment, when direction driving lens holding member is directly advanced on the edge, can suppress to rotate the offset of using the center line that can use the zone with the inspection center and the rotation on the sense of rotation of position detecting element.Its result is easy to the movable range of the inspection center of position detecting element is included in the used zone of magnetite.Thus, can prevent to follow the position detection accuracy of the sense of rotation of bringing along directly advancing the action of direction to reduce.

At this, for " rotation on the sense of rotation with the center line that can use the zone with directly to advance direction roughly consistent ", except center line with directly advance the on all four situation of direction, the movable range that also is included in the inspection center of position detecting element is included under the state in the used zone of magnetite, center line with directly advance the situation that direction staggers.

The image blur correction device that the 4th invention relates to, in the device that the 2nd or the 3rd invention relates to, when when optical axis direction is observed, under the optical axis of the light that incides the revisal lens state consistent with the center of revisal lens, rotation can use regional center line roughly consistent with the inspection center of position detecting element with the rotation usefulness on the sense of rotation.

At this moment, under the optical axis of the light that incides the revisal lens state consistent, be easy to the movable range of the inspection center of position detecting element is included in the used zone of magnetite with the center of revisal lens.For this reason, in the higher scope of the position detection accuracy of sense of rotation, can carry out image blurring correction, thereby can prevent the reduction of image blurring correction performance.

At this, for " rotation is roughly consistent with the center line that can use the zone with the rotation on the sense of rotation with the inspection center of position detecting element ", except inspection center and the on all four situation of center line, the movable range that also is included in the inspection center of position detecting element is included under the state in the used zone of magnetite, the situation that inspection center and center line stagger.

The 5th image blur correction device that relates to of invention in the device that the arbitrary invention the 2nd～4 relates to, when when optical axis direction is observed, the center of turning axle, revisal lens, rotates inspection center with position detecting element and is configured in roughly on the straight line.

At this moment, when direction driving lens holding member is directly advanced on the edge, can suppress to rotate the offset of using the center line that can use the zone with the inspection center and the rotation on the sense of rotation of position detecting element.Its result is easy to the movable range of the inspection center of position detecting element is included in the used zone of magnetite.Thus, can prevent the reduction of the position detection accuracy of sense of rotation.

At this, for " center of turning axle, revisal lens, rotation are configured in roughly on the straight line with the inspection center of position detecting element ", except turning axle, optical axis center, and inspection center's configuration situation in a straight line, the movable range that also is included in the inspection center of position detecting element is included under the state in the used zone of magnetite, the situation that turning axle, optical axis center and inspection center stagger.

The image blur correction device that the 6th invention relates in the device that the arbitrary invention the 1st～5 relates to, also possesses and directly advances to use position detecting element, detects the position of directly advancing the lens holding member on the direction.When optical axis direction is observed, link turning axle and directly advance with the line segment of the inspection center of position detecting element with directly to advance direction roughly consistent.

At this moment, under the optical axis of the light that incides the revisal lens state consistent, be easy to the movable range of the inspection center of position detecting element is included in the used zone of magnetite with the center of revisal lens.For this reason, in the higher scope of the position detection accuracy that directly advances direction, can carry out image blurring correction, thereby can prevent the reduction of position detection accuracy.

At this, for " link turning axle with directly advance with the line segment of the inspection center of position detecting element with directly to advance direction roughly consistent " for, except line segment with directly advance the on all four situation of direction, the movable range that also is included in the inspection center of position detecting element is included under the state in the used zone of magnetite, line segment with directly advance the situation that direction staggers.

The image blur correction device that the 7th invention relates in the device that the arbitrary invention the 1st～5 relates to, also possesses and directly advances to use position detecting element, detects the position of directly advancing the lens holding member on the direction.Directly advance to have and directly advance to use magnetite with drive division.Directly advance the flux density distribution of directly advancing direction, comprise that magnetic density is with directly advancing with using the zone that roughly certain ratio changes with magnetite.When optical axis direction is observed, in the movable area of lens holding member, exist directly advance with the inspection center of position detecting element with directly enter directly advancing usefulness and can use the regional consistent state of center line on the direction.

Thus, be easy to the movable range of the inspection center of position detecting element is included in the used zone of magnetite, thereby can prevent from directly to advance the reduction of the position detection accuracy of direction.

The image blur correction device that the 8th invention relates to, in the device that the 7th invention relates to, when when optical axis direction is observed, under the optical axis of the light that incides the revisal lens state consistent with the center of revisal lens, directly advance with the inspection center of position detecting element with directly advance on the direction directly advancing with the center line that can use the zone roughly consistent.

At this moment, during along sense of rotation driving lens holding member, can suppress directly to advance with the inspection center of position detecting element and the offset that directly advancing to use the center line that can use the zone of directly advancing on the direction.Its result is easy to the movable range of the inspection center of position detecting element is included in the used zone of magnetite.Thus, can prevent from directly to advance the reduction of the position detection accuracy of direction.

At this, for " directly advance with the inspection center of position detecting element with directly advance on the direction directly advance with the center line that can use the zone roughly consistent " for, except inspection center and the on all four situation of center line, the movable range that also is included in the inspection center of position detecting element is included under the state in the used zone of magnetite, the situation that inspection center and center line stagger.

The 9th image blur correction device that relates to of invention, in the device that the arbitrary invention the 1st～8 relates to, rotation has with drive division: rotation with magnetite with according to rotate the rotation coil that disposes with the relative mode of magnetite.When optical axis direction is observed, turning axle and rotation with the distance between the center of coil than the distance between the center of turning axle and revisal lens.

Generally, the revisal lens are heavier than lens holding member or the 1st holding member.For this reason, the centre of gravity place of the moving part of image blur correction device is positioned near the center of revisal lens.

Can regard rotation the load origination point of rotation as with the center of coil with drive division.At this, the distance between turning axle and the rotation usefulness load origination point of drive division is than the distance between the center of turning axle and revisal lens.For this reason, can be by less drive force holding member, thus can realize rotating miniaturization and economize on electricityization with drive division.

The 10th image blur correction device that relates to of invention, in the device that the arbitrary invention the 1st～8 relates to, rotation has with drive division: rotation with magnetite with according to rotate the rotation coil that disposes with the relative mode of magnetite.When optical axis direction is observed, turning axle and rotation are shorter with the distance between the center of coil than turning axle and rotation with the distance between the inspection center of position detecting element.

At this moment, rotation diminishes with the movable range of the sense of rotation of position detecting element.Its result is easy to the movable range of rotation with the inspection center of position detecting element is included in the used zone of magnetite.Thus, can prevent the reduction of the position detection accuracy of sense of rotation.

The image blur correction device that the 11st invention relates to, in the device that the arbitrary invention the 1st～10 relates to, turning axle is configured in and directly advances with the zone between drive division and the revisal lens.

The part of the fixedly revisal lens of lens holding member needs the intensity of the degree that can keep the revisal lens.The part that for this reason, must have the lens holding member around the revisal lens.

On the other hand, otherwise if directly advance with drive division with revisal lens side configuration turning axle mutually, then further make the physical dimension of device increase the part of formation turning axle from directly advancing with drive division.

At this, turning axle is configured in and directly advances with the zone between drive division and the revisal lens.For this reason, can effectively utilize the space around the revisal lens, thus miniaturization that can implement device.

The image blur correction device that the 12nd invention relates in the device that the arbitrary invention the 1st～11 relates to, also possesses and directly advances to use position detecting element, detects the position of directly advancing the lens holding member on the direction.Directly advance and have with drive division: directly advance with magnetite with according to directly advance with what the relative mode of magnetite disposed directly to advance to use coil.Turning axle and directly advancing with the distance between the inspection center of position detecting element than turning axle with directly advance with the distance between the center of coil short.

At this moment, the movable range that directly advances with the sense of rotation of position detecting element diminishes.Its result, the movable range that is easy to directly to advance with the inspection center of position detecting element is included in the used zone of magnetite.Thus, can guarantee directly to advance the position detection accuracy of direction.

The 13rd image blur correction device that relates to of invention in the device that the arbitrary invention the 1st～12 relates to, also possesses the flexible printing substrate, for to rotation drive division service voltage, and is electrically connected with drive division with rotating.The flexible printing substrate has: be fixed on the lens holding member the 1st fixed part, be fixed on the 2nd fixed part of the 2nd holding member and link the 1st and the 2nd fixed part and flexible flexible pars convoluta.The flexible pars convoluta is configured in the rotation shaft side of revisal lens.

At this moment, the deflection of the flexible pars convoluta of lens holding member when sense of rotation moves diminishes, thereby can prevent the broken string of flexible printing substrate.In addition, when the deflection of flexible pars convoluta diminished, the driving force during along sense of rotation driving lens holding member just diminished.Thus, can reduce the consumed power of this image blur correction device.

The image blur correction device that the 14th invention relates to, in the device that the arbitrary invention the 1st～13 relates to, the revisal lens configuration is being rotated with drive division and is directly being advanced with the zone between the drive division.

At this moment, when when optical axis direction is observed, rotation with and directly enters the both sides that are configured in the revisal lens with drive division.For this reason, make image blur correction device roughly elongated on a direction.In other words, can shorten and install the size of the direction of elongated direction quadrature.

The image blur correction device that the 15th invention relates in the device that the arbitrary invention the 1st～14 relates to, also possesses: 3 support portions at least.The support portion, not only keep rotary part, make its with respect to rotation holding member can with the face of light shaft positive cross in move, and limit it to two side shiftings along the direction of optical axis, described rotary part is the side that can move along sense of rotation that is retained in lens holding member and the 1st holding member, and described rotation holding member is a side of the maintenance rotary part in the 1st and the 2nd holding member.

Thus, the lens holding member moves along optical axis direction in the time of can preventing to drive the lens holding member, thereby can prevent the reduction of the optical properties such as focal shift of subject.

The image blur correction device that the 16th invention relates to, in the 15th device that relates to of invention, at least 3 support portions have respectively: be formed at the 1st support portion on the rotary part and be formed on the rotation holding member and can embed the 2nd support portion of the 1st support portion from the direction with rotating shaft direct cross.Side in the 1st and the 2nd support portion is a rhabodoid.The opposing party in the 1st and the 2nd support portion is for embedding the roughly U font of rhabodoid.

At this moment, by simple structure, can limit rotary part and move along optical axis direction with respect to rotation holding member.

The camera that the 17th invention relates to possesses: the image blur correction device that each invention of the 1st lens combination, refractive optical system, the 2nd lens combination, the 1st～16th relates to, image pickup part, camera lens mirror bucket and shell.The 1st lens combination is taken into along the light of the 1st optical axis.Refractive optical system makes along the anaclasis of the 1st optical axis incident and arrives the 2nd optical axis that intersects with the 1st optical axis.The 2nd lens combination comprises the revisal lens that carry out image blurring correction and is taken into the light that is reflected by refractive optical system.Image pickup part receives the light by the 2nd lens combination.Camera lens mirror bucket wherein disposes the 1st lens combination, refractive optical system, the 2nd lens combination, image blur correction device and image pickup part.Shell keeps camera lens mirror bucket.

At this, so-called " along the 1st optical axis " for example is meant and is parallel to the 1st optical axis.In addition, so-called " along the 2nd optical axis " for example is meant and is parallel to the 2nd optical axis.Refractive optical system for example comprises the parts with reflecting surface, more specifically, also can comprise prism, catoptron etc.Image pickup part for example can be CCD, the CMOS etc. that receive on electric, but is not to be defined in this, also can have film etc.

In this camera, owing to possess the image blur correction device that the 1st～16 arbitrary invention relates to, thus not only prevent the reduction of image blurring correction performance, and make miniaturization become possibility.That is to say, in this camera, the images with high image quality of flating that can obtain revisal.

The 18th camera that relates to of invention in the camera that the 17th invention relates to, directly advances direction and direction almost parallel perpendicular to the 1st and the 2nd optical axis.

At this moment, can make the compact in size of camera along the 1st optical axis direction.Especially, in this camera, adopt refractive optical system, thereby can carry the image blur correction device that is miniaturized along size with the direction of directly advancing the direction quadrature.Thus, can make along size (thickness of the camera) miniaturization of the camera of the direction of the 1st optical axis.

The manufacture method that the 19th invention relates to is the manufacture method of image blur correction device, and this image blur correction device has: the lens maintaining body, and maintenance is contained in the revisal lens of optical system in order to carry out image blurring correction; Rotation holding member, with the lens maintaining body movably mode it is kept, this lens maintaining body with the face of the light shaft positive cross of the light that incides the revisal lens in, can move along the sense of rotation that with the turning axle that is roughly parallel to optical axis is the circular arc at center.This manufacture method comprises: the operation that the parts that make lens maintaining body side move along the direction with rotating shaft direct cross with respect to rotation holding member; Rotatably link the parts of lens maintaining body side and the spindle unit of rotation holding member with being used for, be installed in the parts of lens maintaining body side and the operation of rotation holding member.

In this method, with install spindle unit after the parts be equivalent to the support portion are installed situation compare, it is easy that the assembling of image blur correction device becomes.Thus, can realize the reduction of manufacturing cost.

At this, " lens maintaining body " is meant at least one parts that keeps the revisal lens.Thereby, can enumerate as " lens maintaining body ": for example, can directly entering the mechanism that mode keeps the revisal lens, or the fixing single parts etc. of revisal lens.

The manufacture method of the image blur correction device that the 20th invention relates to, in the manufacture method that the 19th invention relates to, during the installation shaft parts, spindle unit is pressed into the side in the 2nd hole that is provided with on the 1st hole that is provided with on the parts of lens maintaining body side and the rotation holding member.

At this moment, do not need with axle, to be adhesively fixed as existing guiding.Thus, bonding process can be shortened, thereby the reduction of manufacturing cost can be realized.

In addition, employed term is described as follows more than.

So-called " inspection center of position detecting element " is that position detecting element is disposed at this image point of 1 in the time of can being considered to position probing.Can enumerate as inspection center: for example detection sensitivity is maximum point in the position detecting element.Generally speaking, inspection center can be assumed to the central point of the detection faces of position detecting element.

For example " can use the zone " and be meant when magnetize at magnetite the two poles of the earth, with the branch polar curve between the N utmost point and the S utmost point be the center, magnetic density guarantees scope with the performance that roughly certain ratio changes.Thereby " can use the center line in zone " is meant the boundary line that for example polarity changes between the N utmost point and the S utmost point when magnetize at magnetite the two poles of the earth.For the magnetite state,, be also included within the situation that the N utmost point on the physics meaning partly partly separates with the S utmost point on physics meaning except N utmost point part and S utmost point part are the situation of one.

So-called " " center " of coil is meant the center of being tried to achieve by the profile of coil, for example when coil when roughly tetragonal, be meant this dimetric center.

Also have,, for example can enumerate the magnetic sensor (Hall element) that utilizes Hall effect etc. as position detecting element.

Among the present invention, the camera that the reduction that not only prevents the image blurring correction performance can be provided and make miniaturization become possible image blur correction device and possess this device.

Among the present invention, can provide the manufacture method of the image blur correction device of the reduction that can realize manufacturing cost.

Description of drawings

Fig. 1 is the stereographic map of the outward appearance of expression digital camera.

Fig. 2 is the stereographic map of the outward appearance of expression digital camera.

Fig. 3 is a skeleton view of schematically representing the structure of main part.

Fig. 4 is the assembling stereogram of camera head.

Fig. 5 is the key diagram (wide-angle side) of the structure of expression optical system.

Fig. 6 is the exploded perspective view of camera head.

Fig. 7 is the stereographic map of image blur correction device.

Fig. 8 is the exploded perspective view of image blur correction device.

Fig. 9 is the stereographic map of vertical movable stand and electric base.

Figure 10 is the stereographic map of deflection movable stand and the 3rd group of frame.

Figure 11 is the stereographic map of deflection movable stand.

Figure 12 be comprise turning axle and with Z axle plane orthogonal in the deflection guiding mechanism around schematic cross-section.

Figure 13 is the floor map from the observation of X-direction minus side of vertical movable stand and electric base.

Figure 14 is the floor map from the positive side observation of X-direction of vertical movable stand and electric base.

Figure 15 is the key diagram from the assemble method of the deflection movable stand of Y direction minus side observation and the 3rd group of frame.

Figure 16 is the synoptic diagram of the embedding state of the 1st support portion and the 2nd support portion.

Figure 17 is the key diagram that the performance of the used zone of magnet and Hall element guarantees scope.

Figure 18 is the exploded perspective view (other embodiment) of image blur correction device.

Figure 19 is the floor map (other embodiment) from the positive side observation of X-direction of vertical movable stand and electric base.

Figure 20 is the exploded perspective view as the image blur correction device of prior art.

Figure 21 is the exploded perspective view as the image blur correction device of prior art.

Figure 22 is the exploded perspective view as the image blur correction device of prior art.

Among the figure: 1-digital camera, 2-camera head, 11-externally mounted part, the 18-image displaying part, 31-camera lens mirror bucket, 32-CCD unit, the 1st group of frame unit of 41-, the 2nd group of frame unit of 42-, G1-the 1st lens combination, G3-the 3rd lens combination (revisal lens), A1-the 1st optical axis, A2-the 2nd optical axis, the A3-turning axle, Pp, the Py-center, Qp, Qy-divides polar curve, 405-is (pitching) movable stand (lens holding member) vertically, 408-deflection (yawing) movable stand (the 1st holding member), the 3rd group of frame of 462-(the 2nd holding member), 400-image blur correction device, the vertical guiding mechanism of 470-, 480-deflection guiding mechanism, the electromagnet actuation mechanism of 412-vertical direction (directly advancing to use drive division), the electromagnet actuation mechanism of 414-yawing moment (rotation drive division), 406c, 406d-Hall element (position detecting element), the 430-pin, 481-the 1st bearing, 482-the 2nd bearing, 483,484,485-the 1st support portion, 486,487,488-the 2nd support portion.

Embodiment

＜1: about summary 〉

Utilize Fig. 1～Figure 17 that the 1st embodiment of the present invention is described.

Digital camera of the present invention is a principal character with the structure of image blur correction device.The digital camera that present embodiment relates to, not only optical system adopts refractive optical system, and the camera lens mirror bucket of object side goes out with the multistage (Kuri り that can stretch out successively) mode form.Thus, taken into account the miniaturization that realizes high power zoom lens system system and implement device.Also having, carried the camera of the image blur correction device that the present invention relates to, is not to be defined in this.The image blur correction device that the present invention relates to also can carry in not having the camera of refractive optical system.

＜2: about digital camera 〉

About the digital camera of first embodiment of the present invention, use Fig. 1～Fig. 3 to describe.

＜2.1: about the structure of digital camera 〉

Fig. 1 is the stereographic map of outward appearance of the digital camera 1 of expression the 1st embodiment of the present invention.

Digital camera 1 possesses camera head 2 and main part 3.Camera head 2 possess make along the refraction of optical beam of the 1st optical axis A1 incident to along with the direction of the 2nd optical axis A2 of the 1st optical axis A1 quadrature on and be directed to the refractive optical system of imaging apparatus.Main part 3 is is not only received and kept camera head 2 and is carried out control of camera head 2 etc.

At first, before the detailed formation of explanation camera head 2, the structure of main part 3 is described.

Also have, in the following description, 6 faces of digital camera 1 are defined as follows.

Face towards subject when digital camera 1 is photographed is defined as the front, and the face of its opposition side is defined as the back side.(general with the rectangular image of making a video recording up and down in vertical by digital camera 1 according to subject, depth-width ratio (long limit is to the ratio of minor face) is 3: 2,4: 3,16: 9 etc.) the short side direction mode unanimous between the higher and lower levels situation of photographing under, above will being defined as towards the face of vertical upside, the face of its opposition side is defined as the bottom surface.And, according to the vertical of subject up and down with the situation of photographing by the short side direction of the rectangular image of digital camera 1 shooting mode unanimous between the higher and lower levels under, to be defined as left surface from the face that object side be observed the left side, the face of its opposition side will be defined as right flank.Also has the use posture of above definition and non-limiting digital camera 1.

According to above definition, Fig. 1 is for representing the stereographic map of positive, top and left surface.

Also having, is not only to 6 faces of digital camera 1, also 6 faces to each component parts of being configured in digital camera 1 carry out same definition.Just, to 6 faces of each component parts under the state that is configured in digital camera 1, be suitable for described definition.

In addition, as shown in Figure 1, the 3 orthogonal dimension coordinate systems (right hand system) that definition has the Y-axis that is parallel to the 1st optical axis A1 and is parallel to the X-axis of the 2nd optical axis A2.According to this definition, is the Y-axis positive dirction along the 1st optical axis A1 from rear side towards the direction of face side, is the X-axis positive dirction along the 2nd optical axis A2 from the right flank side towards the direction of left surface side, is Z axle positive dirction from bottom surface side towards the direction of upper face side along the orthogonal axes with the 1st optical axis A1 and the 2nd optical axis A2 quadrature.

Below, in each accompanying drawing, be that benchmark describes with this XYZ coordinate.Be that X-axis positive dirction, Y-axis positive dirction, Z axle positive dirction in each accompanying drawing represented identical direction respectively.

(2.2: the structure of main part)

Utilize Fig. 1, Fig. 2, Fig. 3 (a)～(c) that the structure of main part 3 is described.

Fig. 2 is the stereographic map of the outward appearance of the back side of expression digital camera 1, top and right flank.

Fig. 3 (a)～(c) is a skeleton view of schematically representing the structure of main part 3.Fig. 3 (a) is the skeleton view of structure that expression is configured in the parts of the positive side of Y direction (face side), Fig. 3 (b) is the skeleton view of structure that expression is configured in the parts of Z-direction minus side (bottom surface side), and Fig. 3 (c) is the skeleton view of the structure of the expression parts that are configured in Y direction minus side (rear side).

As Fig. 1～shown in Figure 3, main part 3 is mainly by constituting with lower member, that is: constitute the basket of harvesting camera head 2 externally mounted part 11 and handle portion (grip) 12, the flashlamp 15 that is configured in externally mounted part 11 surfaces, release-push 16, operation board 17 and image displaying part 18, be configured in main capacitor 20 (main condenser), auxiliary substrate 21, battery 22, main substrate 23 and the storage card 24 of the inside of the basket that constitutes by externally mounted part 11 and handle portion 12.

As shown in Figure 1, externally mounted part 11 is casings of long roughly rectangular shape on the 2nd optical axis A2 direction, disposes the handle portion 12 that is used to control when allowing the cameraman in photography in the positive side of X-direction, and it is outstanding to Y direction from externally mounted part 11.Thus, externally mounted part 11 and handle portion 12 constitute the hollow basket that roughly is L word shape.The part of its cylindrical portion 125 (with reference to Fig. 6) of fixed mount 52 (with reference to Fig. 6) of camera head 2 described later is just side-prominent to Y direction from externally mounted part 11.In addition, dispose flashlamp 15 in the front of externally mounted part 11.Flashlamp 15 glistens as required when subject is dark and shines subject to carry out exposure compensating.In addition, handle portion 12 sides of the upper surface of externally mounted part 11 dispose release-push 16 and operation board 17.When photographing action, press release-push 16 to the Z-direction minus side.The operation board 17 various settings that action is set etc. of photographing.

And as shown in Figure 2, the back side of externally mounted part 11 is provided with image displaying part 18, and it is used to make visual images by camera head 2 photographies such as cameraman as visual portion.It is 3: 2,4: 3,16: 9 etc. rectangular profile that image displaying part 18 for example has depth-width ratio (long limit is to the ratio of minor face), is arranged to its long side direction and direction (X-direction) almost parallel along the 2nd optical axis A2.

Also have, Fig. 1 and Fig. 2 only represent to be configured in the critical piece on the surface of externally mounted part 11, also can be provided with the parts beyond the illustrated parts.

Then, utilize Fig. 3 that the inner structure of main part 3 is described.

Shown in Fig. 3 (a), the positive side of Y direction in the inside of main part 3 disposes in the 2nd optical axis A2 direction (the positive side of X-direction) and goes up long camera head 2, and its long side direction is along the long side direction of externally mounted part 11.Camera head 2 will keep being configured on the main part 3 towards the 1st group of frame unit 41 of the 1st lens combination G1 of subject according to the mode towards the X-direction minus side.Thus, the X-direction distance till guaranteeing from the 1st lens combination G1 to handle portion 12.

And, dispose flashlamp 15, main capacitor 20 and auxiliary substrate 21 in the positive side of the Z-direction of camera head 2.Main capacitor 20 is given the flash of light energy by the charging from battery 22 described later to flashlamp.The auxiliary substrate 21 or as required electric power from battery 22 described later is carried out transformation is controlled flashlamp 15.In addition, the positive side of Y direction in the inside of handle portion 12 disposes the battery 22 as power supply that is used to make digital camera 1 action.

Have again,, dispose main substrate 23 at the Y direction minus side of camera head 2 as Fig. 3 (b) and (c).On main substrate 23, be equipped with processing from the image processing circuit of the picture signal of camera head 2, be used to control circuit of controlling by camera head 2 etc.In addition, the Y direction minus side at battery 22 disposes storage card 24.Storage card 24 records are from the picture signal of camera head 2.

Also have, as Fig. 3 (a) and (b), the Z-direction width (Wz) of camera head 2 forms greatlyyer than Y direction width (Wy).

＜3: about camera head 〉

(3.1 :) about the structure of camera head

Utilize Fig. 4 that the structure of carrying the camera head 2 on digital camera 1 is described.

Fig. 4 is the assembling stereogram of camera head 2.Fig. 4 (a) is the front of expression camera head 2, the stereographic map of top and left surface, and Fig. 4 (b) is the front of expression camera head 2, the stereographic map of top and right flank.

Camera head 2 by camera lens mirror bucket 31 with optical system 35, have the motor unit 32 of the zoom motor 36 that drives camera lens mirror bucket 31 and have the CCD unit 33 that the light beam by camera lens mirror bucket 31 is carried out sensitization and constitute as the CCD37 of image pickup part.

Camera lens mirror bucket 31 can multistagely move and the multi-stage telescopic lens mount of scalable (Shen trunk) repeatedly it is characterized in that in the mechanism having on the 1st optical axis A1 direction, optically it is characterized in that possessing the optical system 35 that constitutes refractive optical system.Optical system 35 possesses 5 groups 12 optical element (lens and prism), and it has realized surpassing the high magnification zoom (for example, roughly 6 times～12 times optical zoom) of 3 times of zooms of optics.According to such formation, camera lens mirror bucket 31 is got into the light beam along the 1st optical axis A1 incident, and make along the refraction of optical beam of the 1st optical axis A1 incident to along on the direction of the 2nd optical axis A2 that intersects with the 1st optical axis A1, further will be refracted to along the light beam on the direction of the 2nd optical axis A2 and guide to CCD37.

Motor unit 32 is for example mainly by constituting with lower member, that is: the zoom motor 36 of DC motor etc., the optical sensor (not shown) that makes flexible printing substrate (FPC) (not shown) that zoom motor 36 is electrically connected with main substrate 23 (with reference to Fig. 3) and be provided with for the position apart from the lens initial point of measuring camera lens mirror bucket 31 by the motor revolution (returning the translocation number) of measuring zoom motor 36.Zoom motor 36 drives camera lens mirror bucket 31 moves optical system 35 between wide-angle side and telescope end.Thus, the optical system 35 that camera lens mirror bucket 31 possesses, the zoom-lens system that changes as the light beam imaging multiplying power that makes among the CCD37 carries out work.Optical sensor is following to carry out work.Optical sensor is a pair of infiltration type optical sensor that is provided with according to the mode that the outside from electric case (gear case) enters.It is the コ word shape that optical sensor makes profile, has a pair of light-emitting component and photo detector at relative two ends.The gear that directly links with zoom motor 36 is passed through,, can measure the revolution of zoom motor in the noncontact mode by the metering time per unit number of times that gear blocks between this light-emitting component and photo detector.

CCD unit 33 mainly by receive by camera lens mirror bucket 31 light beam and with its be transformed to electric signal CCD37, be used for FPC (not shown) formation that CCD37 is fixed on the CCD sheet metal 38 on the camera lens mirror bucket 31 and CCD37 is electrically connected with main substrate 23 (with reference to Fig. 3).

(3.2 :) about optical system

Before the detailed structure to camera head 2 describes, utilize the structure of the optical system 35 that Fig. 5 possesses camera lens mirror bucket 31 to describe.

Fig. 5 represents the structure of the optical system 35 that camera lens mirror bucket 31 possesses.The configuration of the optical system 35 when Fig. 5 represents that optical system 35 is positioned at wide-angle side.Fig. 5 represents from the configuration of the observed optical system 35 of the viewpoint identical with Fig. 4.

As shown in Figure 5, optical system 5 possesses in turn from subject: the 1st lens combination G1, the 2nd lens combination G2, exposure modulating part St (with reference to Fig. 6), the 3rd lens combination G3 as the revisal lens, the 4th lens combination G4, the 5th lens combination G5 and IR optical filtering F1 (not shown), and constitute from the light beam of the 1st lens combination G1 incident and be directed into CCD37 by each lens combination G1～G5 and IR optical filtering F1.In addition, by changing the interval between each lens combination, each lens combination G1～G5 constitutes zoom-lens system.

Also having, constitute the lens arrangement of each lens combination G1～G5, is not to be defined in described structure, so long as can play the structure of identical optical effect, can adopt other lens arrangement yet.

＜4: about camera lens mirror bucket 〉

(4.1 :) about the structure of camera lens mirror bucket

Utilize Fig. 6 that the structure of camera head 2, main structure to camera lens mirror bucket 31 are described.

Fig. 6 is the exploded perspective view from the viewpoint observed camera head 2 identical with Fig. 4 (a).

Camera lens mirror bucket 31 by the base unit 43 of the 2nd group of frame unit 42 of the 1st group of frame unit 41 that keeps the 1st lens combination G1, fixing the 2nd lens combination G2 of maintenance, keep exposure modulating part St and the 3rd lens combination G3 the 3rd group of frame unit 44, keep the 4th group of frame unit 45 of the 4th lens combination G4 and keep base flange (master flange) unit 46 of the 5th lens combination G5 to constitute.

The 1st group of frame unit 41 mainly possesses: be configured in the 1st lens combination G1 on the 1st optical axis A1, the 1st group of frame 50 that keeps the 1st lens combination G1, with the 1st group of frame 50 according to the bogie 51 that can support in the mode that the 1st optical axis A1 direction (Y direction) go up to move, with bogie 51 according to the fixed mount 52 that can support in the mode that the 1st optical axis A1 direction (Y direction) go up to move, and be configured between fixed mount 52 and the base unit 43 driven wheel 53 that can be sent to bogie 51 along the driving force with motor unit 32 of Y direction rotation.

Fixed mount 52 is fixed on the 2nd group of frame unit 42 that keeps the 2nd lens combination G2.Fixedly the time, carry out the location of Z-direction and X principal direction at this, make the optical axis of the 1st lens combination G1 consistent with the optical axis of the 4th lens L4 of the 2nd lens combination G2.

Base unit 43 mainly possesses: constitute the basket of camera lens mirror bucket 31 bottom 55, constitute basket and the over cap 56 that the face side of bottom 55 is covered, be fixed on the 2nd group of frame unit 42 on the bottom 55, make the 3rd group of frame unit 44 being stored in the basket inside that constitutes by bottom 55 and over cap 56 along mobile the 3rd group of travel mechanism 57 of the 2nd optical axis A2 direction (X-direction) with detect the optical sensor 58 of the X-direction position of the 3rd group of frame unit 44 with bottom 55.

X-direction minus side in base unit 43 is equipped with the motor unit 32 that rotation drives driven wheel 53.The driving force of motor unit 32 is sent to the 3rd group of travel mechanism 57 through driven wheel 53.Be fixed with the base flange unit 46 of the positive side of X-direction that covers base unit 43 in the positive side of the X-direction of base unit 43.

The 3rd group of frame unit 44 mainly possesses: shutter unit 60 has and is arranged on the exposure modulating part St that the 2nd optical axis A2 went up and carried out shutter action and the action of light modulation circle; The 3rd lens combination G3; The image blur correction device 400 that the 3rd lens combination G3 is kept according to the mode that can move on Y direction and Z-direction; With the 3rd group of frame 462 that supports shutter unit 60 and image blur correction device 400.

The 3rd group of frame 462 is fixed in the 3rd group of travel mechanism 57 of base unit 43, is driven on X-direction.In the time of should be fixedly, carry out the location of Y direction and Z-direction, the optical axis when making the 3rd lens combination G3 be positioned at the movable center of movable range is consistent with the optical axis of the 6th lens L6 of the 2nd lens combination G2 and the 7th lens L7.And then the 3rd group of frame 462 is slidably chimeric with the 3rd group of guide rod 70,71 that extends from base flange described later unit 46 along the X-direction minus side.Thus, the 3rd group of frame unit 44 only can promptly move on the 2nd optical axis A2 direction in X-direction.

The 4th group of frame unit 45 mainly possesses: the 4th lens combination G4, keep the 4th lens combination G4 the 4th group of frame 66, be fixed on the 4th group of sensor magnetite 67 and the coil 68 on the frame 66.

The 4th group of frame 66 is slidably chimeric with the 4th group of guide rod 72,73 that extends from base flange described later unit 46 along the X-direction minus side.Thus, not only the 4th group of frame unit 66 positioned on Y direction and Z-direction, the optical axis that makes the 4th lens combination G4 is consistent with the optical axis of the 6th lens L6 of the 2nd lens combination G2 and the 7th lens L7, and the 4th group of frame unit 66 only can promptly be moved on the 2nd optical axis A2 direction in X-direction.

Base flange unit 46 mainly possesses: the 5th lens combination G5; The base flange 75 that keeps the 5th lens combination G5; Be fixed on the 3rd group of guide rod 70,71 and the 4th group of guide rod 72,73 that base flange 75 upper edge X-direction minus sides extend; Through the IR optical filtering F1 of yielding rubber 80 from the positive side installation of X-direction; By allowing the 4th group of frame 45 produce the magnetic part 76 that drives with cooperating of coil 68; Come the MR sensor 77 of the directions X position of the 4th group of frame unit 45 of sensing with the magnetic of detecting sensor magnetite 67.

Base flange 75 is fixed on the positive side of X-direction of bottom 55.In the time of should be fixedly, on Y direction and Z-direction, locate according to optical axis and the 6th lens L6 of the 2nd lens combination G2 and the consistent mode of optical axis of the 7th lens L7 of the 5th lens combination G5.And then, in the positive side fixation of C of the X-direction of base flange unit 46 CD unit 33.

(4.2 :) about image blur correction device

(4.2.1 :) about all structures of image blur correction device

At first, utilize Fig. 7～Figure 12 that all structures of image blur correction device 400 are described.Fig. 7 is the stereographic map of image blur correction device 400, Fig. 8 is the exploded perspective view of image blur correction device 400, Fig. 9 is the stereographic map of vertical movable stand 405 and electric base 406, Figure 10 is the stereographic map of deflection movable stand 408 and the 3rd group of frame 462, Figure 11 is the stereographic map of deflection movable stand 408, Figure 12 be comprise turning axle A3's and with Z axle plane orthogonal in deflection guiding mechanism 480 around schematic cross-section.

As shown in Figures 7 and 8, image blur correction device 400 mainly possesses: the vertical movable stand 405 as the part of lens holding member that keeps the 3rd lens combination G3; Be fixed on the vertical movable stand 405 as the electric base 406 of the part of lens holding member with vertical movable stand 405 going up the deflection movable stand 408 that the mode that moves support at vertical direction (Z-direction) as the 1st holding member; The 3rd group of frame 462 that deflection movable stand 408 is supported in the mode that can move on yawing moment as the 2nd holding member; As directly entering directly advancing with drive division with electromagnet actuation mechanism (Electricity magnetic ア Network チ ユ エ one ) 412; With the rotation electromagnet actuation mechanism 414 of using drive division as rotation.

The vertical guiding mechanism 470 that the warp-wise vertical direction leads links vertical movable stand 405 and deflection movable stand 408.Warp-wise links deflection movable stand 408 and the 3rd group of frame 462 along the deflection guiding mechanism 480 that the yawing moment that with turning axle A3 is the circular arc at center leads.The detailed formation of relevant deflection guiding mechanism 480 is with aftermentioned.

Also have, be meant Z-direction (directly advancing direction) at this so-called vertical direction, so-called yawing moment is meant that the edge is the direction (sense of rotation) of the circular arc at center with turning axle A3.

Vertically guiding mechanism 470 mainly possesses: be formed on bearing 405a and rotation prevention portion 405b on the vertical movable stand 405, be formed on fixed part 408a, teat 408b and axle 408c on the deflection movable stand 408.On fixed part 408a, by the bonding two ends of slidably inserting the vertical axes 405d that connects bearing 405a that are fixed with.On teat 408b, be fixed with the axle 408c that slidably is embedded into rotation prevention portion 405b.

As Fig. 8 and shown in Figure 9, directly advance the driving force that directly applies Z-direction with 412 pairs of vertical movable stands 405 of electromagnet actuation mechanism (more specifically electric base 406), the 3rd lens combination G3 in the vertical direction is moved.Particularly, directly advance the Z-direction minus side that is configured in the 3rd lens combination G3 with electromagnet actuation mechanism 412, mainly by york piece (yoke) 462d that is fixed on the 3rd group of frame 462, be fixed on directly advancing with magnetite 462c and be formed on and directly advancing formation on the electric base 406 of york piece 462d with coil 406a.Magnetite 462c is magnetized by the two poles of the earth on Z-direction.Directly advance the electromagnetic force Fp that produces vertical direction with electromagnet actuation mechanism 412.

Dispose Hall element 406c in the positive side of the Y direction of coil 406a, its detect as being used to detect the magnetic flux of magnetite 462c the 3rd lens combination G3 the Z-direction position directly advance to use position detecting element.Hall element 406c is with directly advancing with electromagnet actuation mechanism 412 public magnetite 462c.

Rotate the driving force that directly applies Y direction with 414 pairs of vertical movable stands 405 of electromagnet actuation mechanism (more specifically electric base 406), making the 3rd lens combination G3 is that the center is rotated with turning axle A3.Particularly, rotation is configured in the positive side of Z-direction of the 3rd lens combination G3 with electromagnet actuation mechanism 414, mainly constitutes with coil 406b with magnetite 462e and the rotation that is formed on the electric base 406 by being fixed on the 3rd group of york piece 462f, the rotation that is fixed on the york piece 462f on the frame 462.Magnetite 462e is magnetized by the two poles of the earth on Y direction.Rotation produces the electromagnetic force Fy of yawing moment with electromagnet actuation mechanism 414.

Z-direction minus side at coil 406b disposes Hall element 406d, the rotation position detecting element that it detects the Y direction position of the 3rd lens combination G3 as being used to detect the magnetic flux of magnetite 462e.Hall element 406d is with rotation electromagnet actuation mechanism 414 public magnetite 462e.

The opposition side opposite that rotation is configured in the 3rd lens combination G3 with electromagnet actuation mechanism 414 with directly advancing usefulness electromagnet actuation mechanism 412.In other words, the 3rd lens combination G3 is configured in the zone between electromagnet actuation mechanism 414 and the electromagnet actuation mechanism 412.Also have, for the planar configuration of each component part in detail with aftermentioned.

In addition, as Fig. 7～shown in Figure 9, image blur correction device 400 also has the flexible printing substrate 490 that is used for voltage is supplied with electric base 406.Flexible printing substrate 490 is electrically connected with electric base 406.Particularly, flexible printing substrate 490 is made of the 1st fixed part 491, flexible pars convoluta 492 and the 2nd fixed part 493, described the 1st fixed part 491 is fixed on the dorsal part of electric base 406 and is electrically connected with electric base 406, described flexible pars convoluta 492 extends from the 1st fixed part 491 along the Z-direction minus side, and described the 2nd fixed part 493 is formed on the end of flexible pars convoluta 492 and is fixed on the 3rd group of frame 462.

As shown in Figures 7 and 8, flexible pars convoluta 492 is configured in the turning axle A3 side (with reference to Fig. 8) of the 3rd lens combination G3.More specifically, flexible pars convoluta 492 is configured in positive side of Y direction and the Z-direction minus side of the 3rd lens combination G3.Flexible pars convoluta 492 extends along Z-direction from the part of the positive side of Y direction of electric base 406, flexes into Y direction at the outside of coil 406a flexible pars convoluta 492.

When vertical movable stand 405 with respect to the 3rd group of frame 462 on vertical direction and yawing moment when mobile, the 1st fixed part 491 and the 2nd fixed part 493 relatively move.At this moment, flexible pars convoluta 492 along Z-direction or Y direction bending, absorbs relatively moving of the 1st fixed part 491 and the 2nd fixed part 493 between the 1st fixed part 491 and the 2nd fixed part 493.

(4.2.2 :) about deflection guiding mechanism 480

In this image blur correction device 400, it is characterized in that the structure of deflection guiding mechanism 480.Particularly, as shown in Figure 8, it can be that the center is rotated with the turning axle A3 that is configured in the 3rd lens combination G3 outside through deflection guiding mechanism 480 that deflection movable stand 408 and the 3rd group of frame 462 are connected to.More specifically, as Fig. 8, Figure 10 and shown in Figure 11, deflection guiding mechanism 480 mainly possesses: be formed on the 1st bearing 481 (with reference to Fig. 8, Figure 11, Figure 12) on the deflection movable stand 408, the pin 430 that is formed on the 2nd bearing 482 (with reference to Figure 10, Figure 12) on the 3rd group of frame 462 and extends along X-direction.

The 1st bearing 481 is formed on the Z-direction minus side of deflection movable stand 408, has the hole 481a (with reference to Figure 12) that connects in X-direction.The 2nd bearing 482 is formed on the positive side of Z-direction of peristome 462p and has the hole 482a that connects on X-direction, and described peristome is formed on around the 2nd optical axis A2 of the 3rd group of frame 462.

As shown in figure 12, the part of the positive side of X-direction of pin 430 for example is pressed among the hole 482a of the 2nd bearing 482.Just, pin 430 part that is fixed on the X-direction minus side of pin 430 on the 3rd group of frame 462 through the 2nd bearing 482 separates minim gap and inserts and be embedded among the hole 481a of the 1st bearing 481.The center of pin 430 is roughly consistent with turning axle A3.

According to above formation, it can be that the center is rotated with turning axle A3 that deflection movable stand 408 and the 3rd group of frame 462 are connected to.

In addition, support deflection movable stand 408 and the 3rd group of framves 462 by deflection guiding mechanism 480, make its can with the face of the 2nd optical axis A2 quadrature in move, and limit its relatively moving on the 2nd optical axis A2 direction.This restricted part (support portion) with the face of X-axis quadrature in be arranged on 3 positions.Particularly, as Figure 10 and shown in Figure 11, deflection guiding mechanism 480 also has: be arranged on 3 the 1st support portions 483,484,485 (with reference to Figure 10, Figure 11) on the deflection movable stand 408 and be arranged on 3 the 2nd support portions 486,487,488 (with reference to Figure 10) on the 3rd group of frame 462.

As Figure 10 and shown in Figure 11, the 1st support portion 483,484,485 be configured in the 3rd lens combination G3 around.The 1st support portion the 483, the 484th, the part of U word shape roughly, the 1st support portion 485 has rhabodoid.As shown in figure 10, the 2nd support portion 486,487,488 is configured in the position corresponding with the 1st support portion 483,484,485.The 2nd support portion 486,487 has rhabodoid, and the 2nd support portion 488 is parts of U word shape roughly.The 1st support portion 483 slidably is embedded in the 2nd support portion 486, and the 1st support portion 484 slidably is embedded in the 2nd support portion 487, and the 1st support portion 485 slidably is embedded in the 2nd support portion 488.

Below, to being described in detail of each several part.

As Figure 10 and shown in Figure 11, the 1st support portion 483 has the roughly U word shape of emptying in the positive side of Z-direction, and is formed on the peripheral part of deflection movable stand 408.On the position corresponding to the 1st support portion 483 of the 3rd group of frame 462, dispose the 2nd support portion 486.The 2nd support portion 486 has: a pair of teat 486a, be fixed between a pair of teat 486a the axle 486b.Axle 486b for example is the rhabodoid that extends along Y direction, is inserted into the 1st support portion 483 of U word shape roughly from Z-direction.

Between the X-direction of axle 486b and the 1st support portion 483, guarantee minim gap so that the 1st support portion 483 can be moved along Y direction and Z-direction with respect to axle 486b.Between the Y direction of the 1st support portion 483 and teat 486a, guarantee the gap so that in the movable area of deflection movable stand 408 the 1st support portion 483 and teat 486a non-interference.

The 1st support portion 484 has the roughly U word shape of emptying in the positive side of Z-direction, and is formed on the peripheral part of deflection movable stand 408.On the position corresponding to the 1st support portion 484 of the 3rd group of frame 462, dispose the 2nd and support teat 487.The 2nd support portion 487 has: a pair of teat 487a, be fixed between a pair of teat 487a the axle 487b.Axle 487b for example is the rhabodoid that extends along Y direction, is inserted into the 1st support portion 484 of U word shape roughly from Z-direction.

Between the X-direction of axle 487b and the 1st support portion 484, guarantee minim gap so that the 1st support portion 484 can be moved with respect to axle 487b.Between the Y direction of the 1st support portion 484 and teat 487a, guarantee the gap so that in the movable area of deflection movable stand 408 the 1st support portion 484 and teat 487a non-interference.

The 1st support portion 485 is formed on the peripheral part of deflection movable stand 408, has: a pair of teat 485a, be fixed between a pair of teat 485a the axle 485b.On the position corresponding to the 1st support portion 485 of the 3rd group of frame 462, dispose the 2nd and support teat 488.Axle 485b for example is the rhabodoid that extends along Y direction, is inserted into the 2nd support portion 488 of U word shape roughly from Z-direction.

Between the X-direction of axle 485b and the 2nd support portion 488, guarantee minim gap so that the 2nd support portion 488 can be moved with respect to axle 485b.Between the Y direction of teat 485a and the 2nd support portion 488, guarantee the gap so that in the movable area of deflection movable stand 408 teat 485a and the 2nd support portion 488 non-interference.

According to above structure, support deflection movable stands 408 by the 3rd group of frame 462, make its can with the face of the 2nd optical axis A2 quadrature in move within the specific limits.In addition, the relatively moving to positive side of X-direction and minus side of limiting deflection movable stands 408 and the 3rd group of frame 462 by deflection guiding mechanism 480.Thus, when deflection movable stand 408 rotation, on the 2nd optical axis A2 direction, deflection movable stand 408 is with respect to the position stability of the 3rd group of frame 462, thereby can prevent the reduction of image blurring correction performance.

In addition, the side in the described the 1st and the 2nd support portion is a rhabodoid, and the opposing party is the part of U word shape roughly.For this reason, can limit deflection movable stand 408 by simple structure moves on the 2nd optical axis A2 direction with respect to the 3rd group of frame 462.

In sum, in this image blur correction device 400, can vertical movable stand 405 be driven towards vertical direction by directly advancing with respect to the 3rd group of frame 462 with electromagnet actuation mechanism 412, and, can with electromagnet actuation mechanism 414 vertical movable stand 405 and deflection movable stand 408 be driven towards yawing moment by rotation with respect to the 3rd group of frame 462.Just, by this image blur correction device 400, the 3rd lens combination G3 can be driven towards vertical direction and yawing moment with respect to the 2nd optical axis A2.

(4.2.3 :) about the position relation of the each several part of image blur correction device 400

In addition, the feature of image blur correction device 400 also is the position relation of each several part.Utilize Figure 13～Figure 14 that the position relation of each several part is at length described.Figure 13 is the floor map from the observation of X-direction minus side of vertical movable stand 405 and electric base 406.Figure 14 is the floor map from the positive side observation of X-direction of vertical movable stand and electric base.Figure 13 and Figure 14 represent the state that the 2nd optical axis A2 is consistent with the center C of the 3rd lens combination G3, and promptly the position of the 3rd lens combination G3 is positioned near the state of central authorities of movable area.

As Figure 13 and shown in Figure 14, under the 2nd optical axis A2 state consistent with the center of the 3rd lens combination G3, Hall element 406c, the 406d of image blur correction device 400 and the center P y of coil 406b are configured in the plane of the center C that comprises turning axle A3 and the 3rd lens combination G3.Just, in the movable area of vertical movable stand 405, the center P y of the center C of turning axle A3, the 3rd lens combination G3, Hall element 406c, 406d and coil 406b is configured in along on the straight line L of Z-direction extension.

At this, the center P y of so-called coil 406b is meant the center of trying to achieve from the planar profile of coil 406b, for example is when quadrangle roughly at coil, is meant this dimetric center.Under the situation of present embodiment, the center P y of coil 406b tries to achieve in the size of Y direction and Z-direction from coil 406b.Center P y is meant the center (load origination point) of the load generation area of electromagnet actuation mechanism 414 in fact.In other words, with in the electromagnet actuation mechanism 414, center P y is the center (load application point) of the load zone of action of vertical movable stand 405 in rotation.Also have, the center P p of coil 406a is also identical with center P y.

In the movable area of vertical movable stand 405, there are the Ry of inspection center of Hall element 406d and the consistent state of branch polar curve Qy of magnetite 462e.Under the Ry of inspection center of the Hall element 406d state consistent with the branch polar curve Qy of magnetite 462e, the direction of the branch polar curve Qy of magnetite 462e is roughly consistent with vertical direction (Z-direction).And then as Figure 13 and shown in Figure 14, under the 2nd optical axis A2 state consistent with the center C of the 3rd lens combination G3, the Ry of inspection center of Hall element 406d is roughly consistent with the branch polar curve Qy of magnetite 462e.

For example, under as Figure 13 and state shown in Figure 14, the Ry of the inspection center general arrangement of the center C of turning axle A3, the 3rd lens combination G3, Hall element 406d is on straight line L.The line segment of the Rp of inspection center of binding turning axle A3 and Hall element 406c is roughly consistent with vertical direction (Z-direction).

As Figure 13 and shown in Figure 14, the distance L 1 between the center P y of turning axle A3 and coil 406b is longer than the distance L between the center C of turning axle A3 and the 3rd lens combination G3 0.Distance L 2 between the Ry of inspection center of turning axle A3 and Hall element 406d is shorter than the distance L between the center P y of turning axle A3 and coil 406b 1.Distance L 3 between the Rp of inspection center of turning axle A3 and Hall element 406c is shorter than the distance L between the center P p of turning axle A3 and coil 406a 4.

On the other hand, as Figure 13 and shown in Figure 14, in the movable area of vertical movable stand 405, there are the Rp of inspection center of Hall element 406c and the consistent state of branch polar curve Qp of magnetite 462c.Under the 2nd optical axis A2 state consistent with the center C of the 3rd lens combination G3, the Rp of inspection center of Hall element 406c is roughly consistent with the branch polar curve Qp of magnetite 462c.

Under Figure 13 and state shown in Figure 14, divide the direction approximate vertical of the electromagnetic force Fy that is produced in polar curve Qy and straight line L and the electromagnet actuation mechanism 414.Just, under Figure 13 and state shown in Figure 14, comprise application point and the plane of turning axle A3 and the direction approximate vertical that electromagnetic force Fy is acted on of electromagnetic force Fy.

At this, so-called " inspection center of Hall element " can be considered to when position probing Hall element is configured in this any image point.As inspection center, for example can enumerate detection sensitivity in the Hall element and be maximum point.Generally speaking, inspection center can be assumed to the central point of the detection faces of Hall element.So-called " the branch polar curve of magnetite " is meant the boundary line that polarity changed between the N utmost point and the S utmost point.Shown in Figure 17 (a), the flux density distribution of magnetite comprises that with minute polar curve be the used zone of the magnetic density at center by roughly certain rate of change.What is called can use the zone to be meant the spendable scope of position probing, if can use in the zone, then the measured value of Hall element is along with substantial linear ground in measuring position changes, thereby can carry out correct position probing.

For example, shown in Figure 17 (b), if in the used zone of magnetite, then when the relative position (measuring position) of Hall element and magnetite when changing, the measured value of Hall element (output) along with the variation of relative position substantial linear variation.For this reason, can try to achieve the correct relative of Hall element based on the output of Hall element with respect to magnetite.Just, the used zone of magnetite guarantees scope corresponding to the performance of position probing.Guarantee scope if the movable range of Hall element is this performance, then Hall element can be stood as being used for the position detecting element of image blurring correction and use.

The situation of image blur correction device 400, the flux density distribution of directly advancing with the vertical direction (Z-direction) of magnetite 462c comprises that with a minute polar curve Qp be the used zone at center.Rotation comprises that with the flux density distribution of the yawing moment (Y direction) of magnetite 462e with a minute polar curve Qy be the used zone at center.The movable range of the Rp of inspection center of Hall element 406c is set in the used zone of magnetite 462c.The movable range of the Ry of inspection center of Hall element 406d is set in the used zone of magnetite 462e.

(4.2.4 :) about the assemble method of image blur correction device 400

The feature of image blur correction device 400 also is assemble method.Utilize Figure 15～Figure 16 to the assemble method of image blur correction device 400, especially the assemble method of deflection movable stand 408 and the 3rd group of frame 462 describes.Figure 15 is that Figure 16 is the synoptic diagram of the embedding state of the 1st support portion and the 2nd support portion from the key diagram of the assemble method of the deflection movable stand 408 of Y direction minus side observation and the 3rd group of frame 462.

Shown in Figure 15 (a), at first, the face of the X-direction minus side of relative the 3rd group of frame 462 embeds deflection movable stand 408.At this moment, shown in Figure 16 (a) and (b), the 1st support portion 483,484 of deflection movable stand 408 is inserted into the space around the 2nd support portion 486,487 of the 3rd group of frame 462, the 2nd support portion 488 is inserted into space around the 1st support portion 485.

Then, shown in Figure 15 (b), relative the 3rd group of frame 462 makes deflection movable stand 408 slide along the positive side of Z-direction.Thus, shown in Figure 16 (c), axle 486b, the 487b of the 2nd support portion 486,487 is inserted in the 1st support portion 483,484 of U word shape roughly, the axle 485b of the 1st support portion 485 is inserted in the 2nd support portion 488 of U word shape roughly.

So shown in Figure 15 (c), roughly consistent location stops the slip of deflection movable stand 408 at the center of hole 481a, the 482a of the 1st bearing 481 and the 2nd bearing 482, then pin 430 is inserted into hole 481a, the 481b from the X-direction minus side.At this moment, pin 430 is pressed among the hole 482a of the 2nd bearing 482 and is fixed on the 3rd group of frame 462.

As described above, link deflection movable stand 408 and the 3rd group of frame 462, can carry out the fixing of pin 430 and the 3rd group of frame 462 by being pressed into by the 1st support portion 483,484,485 and the 2nd support portion 486,487,488.That is, do not need as existing image blur correction device, for example the two ends with yawing axis are adhesively fixed in retainer.

The reason that produces the difference on such assembling procedure is, in directly advancing under the form as existing image blur correction device, the bearing of trend of axle is vertical with the direction of inserting axle, yet under the rotation form as image blur correction device 400, the bearing of trend of pin 430 is consistent with the direction of inserting pin 430.

Thereby, can omit the bonding process of pin 430 in the image blur correction device 400, thereby need not carry out the subsequent treatment after bonding.Just, can realize the reduction of manufacturing cost.

In addition, by the 1st support portion 483,484,485 and the 2nd support portion 486,487,488, deflection movable stand 408 is finished by 3 supports with respect to the location of the X-direction of the 3rd group of frame 462.As shown in figure 12, the 1st bearing 481 and the 2nd bearing 482 can be disposed in the mode that separates in X-direction.Just, in this deflection guiding mechanism 480, do not need to be undertaken the location of the X-direction of deflection movable stand 408 and the 3rd group of frame 462 by the 1st bearing 481 and the 2nd bearing 482.For this reason, need not improve the dimensional accuracy of the 1st bearing 481 and the 2nd bearing 482 X-direction on every side, thereby can cut down the process number of processing.Thus, can realize the reduction of manufacturing cost.

And, such as described, by the 3rd group of frame 462 being carried deflection movable stands 408 or sliding or only insert pin 430, just can finish the assembling of the 3rd group of frame 462 and deflection movable stand 408 along a direction., the robotization of assembly process not only can be become simply for this reason, thereby and can make the discrete discrepancy of confined state reduce the raising assembly precision.

＜5: action effect 〉

The action effect of above-described image blur correction device 400 is as follows.

〔5.1〕

In this image blur correction device 400, relative the 3rd group of frame 462 is that the center drives deflection movable stand 408 along yawing moment (sense of rotation) with turning axle A3.For this reason, the axle that does not need the guiding usefulness of yawing moment.Thus, can realize the miniaturization of size of the Y direction vertical with vertical direction.

In addition, in this image blur correction device 400, the vertical movable stand 405 (more specifically for fixing the electric base 406 of vertical movable stand 405) of fixing the 3rd lens combination G3 is directly applied driving force from directly advancing with electromagnet actuation mechanism 412 and rotation with electromagnet actuation mechanism 414., do not compare when not acting directly on vertical movable stand 405 for this reason, can prevent the reduction of the positional precision of the 3rd lens combination G3, thereby can prevent the reduction of image blurring correction performance with the driving force of electromagnet actuation mechanism 412,414.

In sum, in this image blur correction device 400, not only prevent the reduction of image blurring correction performance, and make miniaturization become possibility.

〔5.2〕

In this image blur correction device 400, under the Ry of inspection center of the Hall element 406d state consistent with the branch polar curve Qy of magnetite 462e, the direction of the branch polar curve Qy of magnetite 462e and vertical direction (Z-direction, directly advance direction) are roughly consistent.For this reason, when vertically guiding mechanism 470 vertically drives vertical movable stand 405, can suppress the offset of yawing moment (sense of rotation) of the branch polar curve Qy of the Ry of inspection center of Hall element 406d and magnetite 462e.Its result is easy to the movable range of the Ry of inspection center of Hall element 406d is included in the used zone of magnetite 462e.Thus, can prevent to follow the reduction of position detection accuracy of yawing moment of the action of vertical direction.

At this, for " direction of the branch polar curve Qy of magnetite 462e is roughly consistent with vertical direction (Z-direction) ", except minute polar curve Qy and the on all four situation of vertical direction, the movable range that is also included within the Ry of inspection center of Hall element 406d is included under the state in the used zone of magnetite 462e, the situation of dividing polar curve Qy and vertical direction to stagger.

〔5.3〕

In this image blur correction device 400, under the center C of the 3rd lens combination G3 state consistent with the 2nd optical axis A2, the Ry of inspection center of Hall element 406d is roughly consistent with the branch polar curve Qy of magnetite 462e.For this reason, under the center C of the 3rd lens combination G3 state consistent, be easy to the scope of the Ry of inspection center of Hall element 406d is included in the used zone of magnetite 462e with the 2nd optical axis A2.Thus, can prevent the reduction of the position detection accuracy of yawing moment.

At this, for " Ry of inspection center of Hall element 406d is roughly consistent with the branch polar curve Qy of magnetite 462e ", except Ry of inspection center and the on all four situation of branch polar curve Qy, the movable range that is also included within the Ry of inspection center of Hall element 406d is included under the state in the used zone of magnetite 462e, Ry of inspection center and the situation of dividing polar curve Qy to stagger.

〔5.4〕

In this image blur correction device 400, the Ry of the inspection center general arrangement of the center C of turning axle A3, the 3rd lens combination G3, Hall element 406d is on straight line L.For this reason, when vertically driving vertical movable stand 405, can suppress the offset of the branch polar curve Qy of the Ry of inspection center of Hall element 406d and magnetite 462e.Its result is easy to the movable range of the Ry of inspection center of Hall element 406d is included in the used zone of magnetite 462e.Thus, can prevent the reduction of the position detection accuracy of yawing moment.

At this, for " Ry of inspection center of the center C of turning axle A3, the 3rd lens combination G3, Hall element 406d be configured in roughly a straight line L on ", except turning axle A3, optical axis center and the Ry of inspection center configuration situation in a straight line, the movable range that is also included within the Ry of inspection center of Hall element 406d is included under the state in the used zone of magnetite 462e, the situation that turning axle A3, optical axis center and the Ry of inspection center stagger.

〔5.5〕

In this image blur correction device 400, the line segment of the Rp of inspection center of binding turning axle A3 and Hall element 406c is roughly consistent with vertical direction (Z-direction).For this reason, under the 2nd optical axis A2 state consistent, be easy to the movable range of the Rp of inspection center of Hall element 406c is included in the used zone of magnetite 462e with the center C of the 3rd lens combination G3.Thus, can prevent the reduction of the position detection accuracy of vertical direction.

At this, for " line segment of the Rp of inspection center of binding turning axle A3 and Hall element 406c is roughly consistent with vertical direction ", except this line segment and the on all four situation of vertical direction, the movable range that is also included within the Rp of inspection center of Hall element 406c is included under the state in the used zone of magnetite 462e, the situation that this line segment and vertical direction stagger.

〔5.6〕

In this image blur correction device 400, under the 2nd optical axis A2 state consistent with the center C of the 3rd lens combination G3, the Rp of inspection center of Hall element 406c is roughly consistent with the branch polar curve Qp of magnetite 462c.For this reason, when driving vertical movable stand 405 along yawing moment, can suppress the offset of the branch polar curve Qp of the Rp of inspection center of Hall element 406c and magnetite 462c.Its result is easy to the movable range of the Rp of inspection center of Hall element 406c is included in the used zone of magnetite 462c.Thus, can prevent the reduction of the position detection accuracy of vertical direction.

At this, for " Rp of inspection center of Hall element 406c is roughly consistent with the branch polar curve Qp of magnetite 462c ", except Rp of inspection center and the on all four situation of branch polar curve Qp, the movable range that is also included within the Rp of inspection center of Hall element 406c is included under the state in the used zone of magnetite 462e, Rp of inspection center and the situation of dividing polar curve Qp to stagger.

〔5.7〕

In this image blur correction device 400, the distance L 1 between the center P y of turning axle A3 and coil 406b is longer than the distance L between the center C of turning axle A3 and the 3rd lens combination G3 0.For this reason, image blur correction device 400 is along the centre of gravity place of the moving part of yawing moment (part that is made of vertical movable stand 405 and deflection movable stand 408 etc.), is being positioned at when X-direction is observed near the center C of the 3rd lens combination G3.

For example, when the deadweight W of moving part (N) acts on the positive side of Y direction, the centre of gravity place of the moving part of image blur correction device 400 is assumed near the center C of the 3rd lens combination G3.Distance till will the application point from turning axle A3 to the W that conducts oneself with dignity is made as L (m), the distance till will the center P y from turning axle A3 to coil 406b is made as under the situation of L1 (m), in order to support deadweight W, rotation necessary electromagnetic force Fy (N) in the electromagnet actuation mechanism 414, according to moment (moment) balance, and be expressed from the next:

Fy×L1＝W×L。

As shown in figure 13, so because the relation of L＜L1 Fy＜W establishment.Just, the driving force by less than the power that supports actual weight can drive along yawing moment.

According to above-described structure, compare with existing image blur correction device, rotation can be reduced with electromagnetic force Fy required in the electromagnet actuation mechanism 414.Thus, miniaturization not only can be realized rotating, and the consumed power of image blur correction device 400 can be reduced with electromagnet actuation mechanism 414.

〔5.8〕

In this image blur correction device 400, the distance L 2 between the Ry of inspection center of turning axle A3 and Hall element 406d is shorter than the distance L between the center P y of turning axle A3 and coil 406b 1.For this reason, can reduce the movable range of the yawing moment of Hall element 406d, its result, but the movable range of the Ry of inspection center of Hall element 406d can be included into the usable range of magnetite 462e.Thus, can prevent the reduction of the position detection accuracy of yawing moment.

〔5.9〕

In this image blur correction device 400, vertically the part of fixing the 3rd lens combination G3 of movable stand 405 needs the intensity of the degree that can keep the 3rd lens combination G3.The part that for this reason, around the 3rd lens combination G3, must have vertical movable stand 405.In the present embodiment, when when X-direction is observed, the 3rd lens combination G3 is surrounded by vertical movable stand 405.

On the other hand, if directly advance with electromagnet actuation mechanism 412 with the 3rd lens combination G3 opposition side configuration turning axle A3, then further make the physical dimension of device increase the part of formation turning axle A3 from directly advancing with electromagnet actuation mechanism 412.

But, in this image blur correction device 400, turning axle A3 is arranged in the area configurations of directly advancing with between electromagnet actuation mechanism 412 and the 3rd lens combination G3.For this reason, can effectively utilize the space around the 3rd lens combination G3, thus miniaturization that can implement device.Especially can shorten the size of Z-direction.

〔5.10〕

In this image blur correction device 400, the distance L 3 between the Rp of inspection center of turning axle A3 and Hall element 406c is shorter than the distance L between the center P p of turning axle A3 and coil 406a 4.For this reason, the movable range of the yawing moment of Hall element 406c is less than the movable range of the yawing moment of coil 406a.Its result can be included into the movable range of the Rp of inspection center of Hall element 406c in the used zone of magnetite 462c.Thus, can prevent the reduction of the position detection accuracy of vertical direction.

〔5.11〕

In this image blur correction device 400, the flexible pars convoluta 492 of flexible printing substrate 490 is configured in the turning axle A3 side of the 3rd lens combination G3.For this reason, deflection can be suppressed, thereby the broken string of flexible printing substrate 490 can be prevented when the flexible pars convoluta 492 of vertical movable stand 405 when yawing moment moves.

In addition, in case reduce the deflection of flexible pars convoluta 492, the driving force when yawing moment drives vertical movable stand 405 just diminishes.Thus, can reduce the consumed power of this image blur correction device 400.

〔5.12〕

In this image blur correction device 400, rotating with electromagnet actuation mechanism 414 and directly advancing with the area configurations between the electromagnet actuation mechanism 412 the 3rd lens combination G3 is arranged.Just, directly enter the both sides that are configured in the 3rd lens combination G3 with electromagnet actuation mechanism 412 and rotation with electromagnet actuation mechanism 414.For this reason, (situation of present embodiment is the Z-direction as vertical direction) image blur correction device 400 increases on direction roughly.In other words, can shorten size with the Y direction (yawing moment) of Z-direction quadrature.

〔5.13〕

In this image blur correction device 400,, can limit the relatively moving along positive side of X-direction and minus side of deflection movable stand 408 and the 3rd group of frame 462 by deflection guiding mechanism 480.Thus, during rotation, on the 2nd optical axis A2 direction, the position stability with respect to the 3rd group of frame 462 of deflection movable stand 408, thus can prevent the reduction of optical property of the focal shift etc. of subject image.

In addition, the side in the 1st and the 2nd support portion is a rhabodoid, and the opposing party is the part of U word shape roughly.For this reason, can limit deflection movable stand 408 by simple structure moves on the 2nd optical axis A2 direction with respect to the 3rd group of frame 462.

〔5.14〕

This image blur correction device 400 carries on the digital camera 1 that possesses refractive optical system.Particularly, as shown in Figure 6, image blur correction device 400 be configured to make the 3rd lens combination G3 with the face of the 2nd optical axis A2 quadrature in move.Image blur correction device 400 is configured to: vertical direction and the 1st optical axis A1 and the 2nd optical axis A2 quadrature, promptly Y direction (yawing moment) is roughly parallel with the 1st optical axis A1.

At this moment, because image blur correction device 400 is miniaturized on Y direction, be the slimming of digital camera 1 so can realize the size of the 1st optical axis A1 direction.

In addition, in this image blur correction device 400, can prevent the reduction of image blurring correction performance as described like that.For this reason, in this digital camera 1, can obtain the images with high image quality of revisal flating.

〔5.15〕

The manufacture method of this image blur correction device 400 comprises: the operation that deflection movable stand 408 is moved relative to the 3rd group of frame 462 along the direction with turning axle A3 quadrature; Be installed in operation on deflection movable stand 408 and the 3rd group of frame 462 with the pin 430 that will be used for rotatably linking deflection movable stand 408 and the 3rd group of frame 462.Pin 430 is pressed among the hole 482a of the 2nd bearing 482.Thus, the bonding process of pin 430 can be shortened, thereby the reduction of manufacturing cost can be realized.

The＜6: the 2nd embodiment 〉

In the described image blur correction device 400, though deflection movable stand 408 is rotatably remained in the 3rd group of frame 462, image blur correction device 500 as shown in figure 18 also can rotatably remain in vertical movable stand with the deflection movable stand.At this moment,, keep vertical movable stand 505, it can directly be advanced along yawing moment by the 3rd group of frame 562 through vertical guiding mechanism 570.Deflection movable stand 508 is fixed on the electric base 506.Through deflection guiding mechanism 580, keep deflection movable stand 508 and electric base 506 by vertical movable stand 505, make it rotatable.The 3rd lens combination G3 is fixed on the deflection movable stand 508.Rotatably link vertical movable stand 505 and deflection movable stand 508 by pin 530.Vertically movable stand 505 is supported in the 3rd group of frame 562 by 3 support portions.

As shown in figure 19, the configuration on each plane that constitutes of this image blur correction device 500 and described image blur correction device 400 is identical.In this image blur correction device 500, can obtain the identical effect of as follows and described image blur correction device 400.

〔6.1〕

In this image blur correction device 500, with respect to vertical movable stand 505, deflection movable stand 508 is that the center rotates along yawing moment with turning axle A3.For this reason, do not need corresponding to the guiding of yawing moment with axle.Thus, can realize miniaturization of size perpendicular to the direction of vertical direction.

In addition, in this image blur correction device 500, to the deflection movable stand 508 (more specifically, the electric base 506 of fixed deflection movable stand 508) of fixing the 3rd lens combination G3, directly apply driving force with electromagnet actuation mechanism 514 from directly advancing with electromagnet actuation mechanism 512 and rotation.For this reason, the situation that does not directly act on deflection movable stand 508 with the driving force of electromagnet actuation mechanism 512,514 is compared, and can prevent the reduction of the positional precision of the 3rd lens combination G3, thereby can prevent the reduction of image blurring correction performance.

In sum, in this image blur correction device 500, not only prevent the reduction of image blurring correction performance, and make miniaturization become possibility.

〔6.2〕

In this image blur correction device 500, under the Ry of inspection center of the Hall element 506d state consistent with the branch polar curve Qy of magnetite 562e, the direction of the branch polar curve Qy of magnetite 562e and vertical direction (Z-direction, directly advance direction) are roughly consistent.For this reason, when vertically movable stand 505 vertically drives deflection movable stand 508, can suppress the offset of yawing moment (sense of rotation) of the branch polar curve Qy of the Ry of inspection center of Hall element 506d and magnetite 562e.Its result is easy to the movable range of the Ry of inspection center of Hall element 506d is included in the used zone of magnetite 562e.Thus, can prevent to follow action vertically and the reduction of the position detection accuracy of the yawing moment that comes.

At this, for " direction of the branch polar curve Qy of magnetite 562e is roughly consistent with vertical direction (Z-direction) ", except minute polar curve Qy and the on all four situation of vertical direction, the movable range that is also included within the Ry of inspection center of Hall element 506d is included under the state in the used zone of magnetite 562e, the situation of dividing polar curve Qy and vertical direction to stagger.

〔6.3〕

In this image blur correction device 500, under the center C of the 3rd lens combination G3 state consistent with the 2nd optical axis A2, the Ry of inspection center of Hall element 506d is roughly consistent with the branch polar curve Qy of magnetite 562e.For this reason, under the center C of the 3rd lens combination G3 state consistent, be easy to the scope of the Ry of inspection center of Hall element 506d is included in the used zone of magnetite 562e with the 2nd optical axis A2.Thus, can prevent the reduction of the position detection accuracy of yawing moment.

At this, for " Ry of inspection center of Hall element 506d is roughly consistent with the branch polar curve Qy of magnetite 562e ", except Ry of inspection center and the on all four situation of branch polar curve Qy, the movable range that is also included within the Ry of inspection center of Hall element 506d is included under the state in the used zone of magnetite 562e, Ry of inspection center and the situation of dividing polar curve Qy to stagger.

〔6.4〕

In this image blur correction device 500, the Ry of the inspection center general arrangement of the center C of turning axle A3, the 3rd lens combination G3, Hall element 506d is on straight line L.For this reason, when vertically driving deflection movable stand 508, can suppress the offset of the branch polar curve Qy of the Ry of inspection center of Hall element 506d and magnetite 562e.Its result is easy to the movable range of the Ry of inspection center of Hall element 506d is included in the used zone of magnetite 562e.Thus, can prevent the reduction of the position detection accuracy of yawing moment.

At this, for " Ry of inspection center of the center C of turning axle A3, the 3rd lens combination G3, Hall element 506d be configured in roughly a straight line L on ", except turning axle A3, optical axis center and the Ry of inspection center configuration situation in a straight line, the movable range that is also included within the Ry of inspection center of Hall element 506d is included under the state in the used zone of magnetite 562e, the situation that turning axle A3, optical axis center and the Ry of inspection center stagger.

〔6.5〕

In this image blur correction device 500, the line segment of the Rp of inspection center of binding turning axle A3 and Hall element 506c is roughly consistent with vertical direction (Z-direction).For this reason, under the 2nd optical axis A2 state consistent, be easy to the movable range of the Rp of inspection center of Hall element 506c is included in the used zone of magnetite 562e with the center C of the 3rd lens combination G3.Thus, can prevent the reduction of the position detection accuracy of vertical direction.

At this, for " line segment of the Rp of inspection center of binding turning axle A3 and Hall element 506c is roughly consistent with vertical direction ", except this line segment and the on all four situation of vertical direction, be also included within the situation that interior line segment of the scope that can prevent the position detection accuracy reduction and vertical direction stagger.

〔6.6〕

In this image blur correction device 500, under the 2nd optical axis A2 state consistent with the center C of the 3rd lens combination G3, the Rp of inspection center of Hall element 506c is roughly consistent with the branch polar curve Qp of magnetite 562c.For this reason, when driving deflection movable stand 508, can suppress the offset of the branch polar curve Qp of the Rp of inspection center of Hall element 506c and magnetite 562c along yawing moment.Its result is easy to the movable range of the Rp of inspection center of Hall element 506c is included in the used zone of magnetite 562c.Thus, can prevent the reduction of the position detection accuracy of vertical direction.

At this, for " Rp of inspection center of Hall element 506c is roughly consistent with the branch polar curve Qp of magnetite 562c ", except Rp of inspection center and the on all four situation of branch polar curve Qp, be also included within the interior Rp of inspection center of scope of the position detection accuracy reduction that can prevent vertical direction and the situation that branch polar curve Qp staggers.

〔6.7〕

In this image blur correction device 500, the distance L 1 between the center P y of turning axle A3 and coil 506b is longer than the distance L between the center C of turning axle A3 and the 3rd lens combination G3 0.For this reason, image blur correction device 500 is along the centre of gravity place of the moving part (the 3rd lens combination G3, deflection movable stand 508 and electric base 506) of yawing moment, is being positioned at when X-direction is observed near the center C of the 3rd lens combination G3.

For example, when the deadweight W of moving part (N) acts on the positive side of Y direction, the centre of gravity place of the moving part of image blur correction device 500 is assumed near the center C of the 3rd lens combination G3.Distance till will the application point from turning axle A3 to the W that conducts oneself with dignity is made as L (m), the distance till will the center P y from turning axle A3 to coil 506b is made as under the situation of L1 (m), in order to support deadweight W, rotation necessary electromagnetic force Fy (N) in the electromagnet actuation mechanism 514, according to equalising torque, be expressed from the next:

Fy×L1＝W×L。

As shown in figure 19, so because the relation of L＜L1 Fy＜W establishment.Just, the driving force by less than the power that supports actual weight can drive along yawing moment.

According to above-described structure, compare with existing image blur correction device, rotation can be reduced with electromagnetic force Fy required in the electromagnet actuation mechanism 514.Thus, miniaturization not only can be realized rotating, and the consumed power of image blur correction device 500 can be reduced with electromagnet actuation mechanism 514.

〔6.8〕

In this image blur correction device 500, the distance L 2 between the Ry of inspection center of turning axle A3 and Hall element 506d is shorter than the distance L between the center P y of turning axle A3 and coil 506b 1.For this reason, can reduce the movable range of the yawing moment of Hall element 506d, its result, but the movable range of the Ry of inspection center of Hall element 506d can be included in the usable range of magnetite 562e.Thus, can prevent the reduction of the position detection accuracy of yawing moment.

〔6.9〕

In this image blur correction device 500, the part of fixing the 3rd lens combination G3 of deflection movable stand 508 needs the intensity of the degree that can keep the 3rd lens combination G3.The part that for this reason, around the 3rd lens combination G3, must have deflection movable stand 508.In the present embodiment, when when X-direction is observed, the 3rd lens combination G3 is surrounded by deflection movable stand 508.

On the other hand, if directly advance with electromagnet actuation mechanism 512 with the 3rd lens combination G3 opposition side configuration turning axle A3, then further make the physical dimension of device increase the part of formation turning axle A3 from directly advancing with electromagnet actuation mechanism 512.

But, in this image blur correction device 500, turning axle A3 is arranged in the area configurations of directly advancing with between electromagnet actuation mechanism 512 and the 3rd lens combination G3.For this reason, can effectively utilize the space around the 3rd lens combination G3, thus miniaturization that can implement device.Especially can shorten the size of Z-direction.

〔6.10〕

In this image blur correction device 500, the distance L 3 between the Rp of inspection center of turning axle A3 and Hall element 506c is shorter than the distance L between the center P p of turning axle A3 and coil 506a 4.For this reason, the movable range of the yawing moment of Hall element 506c is less than the movable range of the yawing moment of coil 506a.Its result can be included into the movable range of the Rp of inspection center of Hall element 506c in the used zone of magnetite 562c.Thus, can prevent the reduction of the position detection accuracy of vertical direction.

〔6.11〕

In this image blur correction device 500, the flexible pars convoluta 591 of flexible printing substrate 590 is configured in the turning axle A3 side of the 3rd lens combination G3.For this reason, deflection can be suppressed, thereby the broken string of flexible printing substrate 590 can be prevented when the flexible pars convoluta 591 of deflection movable stand 508 when yawing moment moves.

〔6.12〕

In this image blur correction device 500, rotating with electromagnet actuation mechanism 514 and directly advancing with the area configurations between the electromagnet actuation mechanism 512 the 3rd lens combination G3 is arranged.Just, directly enter the both sides that are configured in the 3rd lens combination G3 with electromagnet actuation mechanism 512 and rotation with electromagnet actuation mechanism 514.For this reason, (situation of present embodiment is the Z-direction as vertical direction) image blur correction device 500 is elongated on direction roughly.In other words, can shorten size with the Y direction (yawing moment) of the elongated Z-direction quadrature of image blur correction device 500.

〔6.13〕

In this image blur correction device 500,, can limit the relatively moving along positive side of X-direction and minus side of deflection movable stand 508 and vertical movable stand 505 by deflection guiding mechanism 580.Thus, on the 2nd optical axis A2 direction, the position stability with respect to vertical movable stand 505 of the deflection movable stand 508 during rotation, thus can prevent the reduction of image blurring correction performance.

In addition, the side in the 1st and the 2nd support portion is a rhabodoid, and the opposing party is the part of U word shape roughly.For this reason, can limit deflection movable stand 508 by simple structure moves on the 2nd optical axis A2 direction with respect to vertical movable stand 505.

〔6.14〕

This image blur correction device 500 carries on the digital camera 1 that possesses refractive optical system.Particularly, image blur correction device 500 be configured to make the 3rd lens combination G3 with the face of the 2nd optical axis A2 quadrature in move.Image blur correction device 500 is configured to: vertical direction and the 1st optical axis A1 and the 2nd optical axis A2 quadrature, promptly Y direction (yawing moment) is roughly parallel with the 1st optical axis A1.

At this moment, because image blur correction device 500 is miniaturized on Y direction, be the slimming of digital camera 1 so can realize the size of the 1st optical axis A1 direction.

In addition, in this image blur correction device 500, can prevent the reduction of image blurring correction performance as described like that.For this reason, in this digital camera 1, the images with high image quality of flating that can obtain revisal.

〔6.15〕

The manufacture method of this image blur correction device 500 comprises: the operation that deflection movable stand 508 is moved relative to vertical movable stand 505 along the direction with turning axle A3 quadrature; With will be used for rotatably linking deflection movable stand 508 and vertically the pin 530 of movable stand 505 be installed in operation on deflection movable stand 508 and the vertical movable stand 505.

Deflection movable stand 508 has the 1st bearing 581, and vertically movable stand 505 has the 2nd bearing 582.The 1st bearing 581 has hole 581a, and the 2nd bearing 582 has hole 582a.

In assembling procedure, pin 530 is pressed among the hole 582a of the 2nd bearing 582.Thus, the bonding process of pin 530 can be shortened, thereby the reduction of manufacturing cost can be realized.

(contrast of 6.16: the 1 embodiments and the 2nd embodiment)

At this, the textural difference of the image blur correction device 500 that image blur correction device 400 that the 1st embodiment is related to and the 2nd embodiment relate to is narrated.

Such as described, in the image blur correction device 400,, support the vertical movable stand 405 that vertically directly advances by deflection movable stand 408 along the yawing moment rotation.For this reason, directly advance with electromagnet actuation mechanism 412 only to drive the 3rd lens combination G3, vertical movable stand 405 and electric base 406, but rotation also needs to drive the 3rd lens combination G3, vertical movable stand 405 and electric base 406 with electromagnet actuation mechanism 414 except that deflection movable stand 408.That is to say, have the tendency that rotation is uprised with the load of electromagnet actuation mechanism 414.

But, such as described, by turning axle A3 and rotation are increased with the distance between the center P y of coil 406b, just can reduce and rotate with electromagnet actuation mechanism 414 required driving forces.For this reason, by regulating the configuration of electromagnet actuation mechanism 414, can reduce the load of rotation with electromagnet actuation mechanism 414.

On the other hand, in the image blur correction device 500,, support along the deflection movable stand 508 of yawing moment rotation by the vertical movable stand 505 that vertically directly advances.For this reason, rotation can only drive the 3rd lens combination G3, deflection movable stand 508 and electric base 506 with electromagnet actuation mechanism 514, but directly advances with electromagnet actuation mechanism 512 also to need to drive deflection movable stand 508 and electric base 506 except that vertical movable stand 505.That is to say, have the tendency make directly to advance the load with electromagnet actuation mechanism 512 to uprise.

At this moment, different with the situation of described image blur correction device 400, even regulate the position of directly advancing to use electromagnet actuation mechanism 512, can not realize the reduction of the load of electromagnet actuation mechanism 512.

In sum, and with rotating mechanism with directly advance in the image blur correction device of mechanism, the structure of the parts that as the 1st embodiment, directly advance, the reduction of the load when the energy implement device all drives like this by the member supporting that is rotated.Just, image blur correction device 400 is compared with image blur correction device 500, can further reduce the load when driving.

＜7: other embodiment 〉

The concrete structure of this aspect is not to be defined in described embodiment, can carry out various changes and correction in the scope of the main idea that does not break away from invention.

〔7.1〕

Described image blur correction device 400,500 can carry on the camera beyond the digital camera 1 that possesses refractive optical system.At this moment, also can realize the miniaturization of camera and prevent the reduction of image blurring correction performance.

〔7.2〕

The configuration of the 1st support portion and the 2nd support portion and shape are not to be defined in described situation.For example, also the 1st support portion 483,484,485 can be formed on the 3rd group of frame 462, the 2nd support portion 486,487,488 is formed on the deflection movable stand 408.In addition, 3 the 2nd support portions 486,487,488 of formation are rhabodoid on also can be 3 the 1st support portions 483,484,485 that form on the deflection movable stand 408 the be U word shape roughly, the 3rd group of frame 462.And what is called is the U word shape roughly, also can so long as have other shapes of shape of 2 parts of the extension of being parallel to each other.

〔7.3〕

In the described embodiment, with magnetite the two poles of the earth magnetization of electromagnet actuation mechanism, but the Magnitizing method of magnetite is not to be defined in this.For example, the Magnitizing method of magnetite also can be utmost point magnetization or the magnetization of three utmost points.Under extremely magnetized situation, there are 2 branch polar curves on the magnetite, but, divide polar curve just consistent with inspection center as long as wherein a branch polar curve is consistent with the inspection center of Hall element with magnetite three.

In addition, when the Magnitizing method of magnetite is utmost point magnetization, there is not the branch polar curve.At this moment, the performance that magnetic density changes with roughly certain ratio guarantees the center line of scope, is equivalent to described minute polar curve.For this reason, during utmost point magnetization, this center line is consistent with inspection center, and it is consistent with inspection center that this is equivalent to described minute polar curve.

In addition, in the described embodiment, the N utmost point of magnetite part and S utmost point part become one on physics, but the state of magnetite is not to be defined in this.For example, when the fooled N utmost point part of physics meaning was partly separated with the S utmost point, the boundary line of change in polarity can be the branch polar curve.

(utilizability on the industry)

The image blur correction device that the present invention relates to and camera are requiring miniaturization and flating In the field that the camera of revisal performance relates to, be useful.

Claims (20)

1, a kind of image blur correction device is used for the image shake that causes because of rocking of camera is carried out revisal, possesses:

The lens holding member, the included revisal lens of optical system of fixing described camera;

The 1st holding member, with described lens holding member movably mode it is kept, described lens holding member can along with the face of the light shaft positive cross of the light that incides described revisal lens in the side who directly advances in the sense of rotation of circular arc that direction and the edge in described are the center with the turning axle that is roughly parallel to described optical axis of any direction move;

The 2nd holding member, with described the 1st holding member movably mode it is kept, described the 1st holding member can along described directly advance and sense of rotation in the opposing party move;

Directly advance to use drive division,, described lens holding member is applied driving force in order directly to advance direction and to drive described lens holding member along described;

Drive division is used in rotation, in order to drive described lens holding member along described sense of rotation, described lens holding member is applied driving force.

2, image blur correction device according to claim 1 is characterized in that, also possesses rotation and uses position detecting element, detects the position of the described lens holding member on the described sense of rotation,

Described rotation has the rotation magnetite with drive division,

Described rotation is with the flux density distribution of the described sense of rotation of magnetite, comprises rotation that magnetic density changes with roughly certain ratio with can using the zone,

When described optical axis direction is observed, in the movable area of described lens holding member, exist described rotation can use the regional consistent state of center line with the described rotation usefulness on the described sense of rotation with the inspection center of position detecting element.

3, image blur correction device according to claim 2 is characterized in that,

When described optical axis direction is observed, under the described rotation state consistent with the center line that can use the zone with the inspection center of position detecting element and the described rotation on the described sense of rotation, the described rotation on the described sense of rotation with the direction of the center line that can use the zone with described directly to advance direction roughly consistent.

4, image blur correction device according to claim 2 is characterized in that,

When described optical axis direction is observed, under the optical axis of the light that the incides described revisal lens state consistent with the center of revisal lens, described rotation is roughly consistent with the center line that can use the zone with the described rotation on the described sense of rotation with the inspection center of position detecting element.

5, image blur correction device according to claim 2 is characterized in that,

When described optical axis direction is observed, the center of described turning axle, described revisal lens, described rotation are configured in roughly on the straight line with the inspection center of position detecting element.

6, image blur correction device according to claim 1 is characterized in that, also possesses directly to advance to use position detecting element, detects the described position of directly advancing the described lens holding member on the direction,

When described optical axis direction is observed, link described turning axle and directly advance with the line segment of the inspection center of position detecting element with described directly to advance direction roughly consistent with described.

7, image blur correction device according to claim 1 is characterized in that, also possesses directly to advance to use position detecting element, detects the described position of directly advancing the described lens holding member on the direction,

Described directly advance to have with drive division directly advance to use magnetite,

The described described flux density distribution of directly advancing with magnetite of directly advancing direction, comprise magnetic density with directly advancing of changing of roughly certain ratio with can using the zone,

When described optical axis direction is observed, in the movable area of described lens holding member, exist and describedly directly advance with the inspection center of position detecting element directly to advance described on the direction and directly advance usefulness and can use the regional consistent state of center line with described.

8, image blur correction device according to claim 7 is characterized in that,

When described optical axis direction is observed, under the optical axis of the light that the incides described revisal lens state consistent, describedly directly advance with the inspection center of position detecting element directly to advance described on the direction and directly advance roughly consistent with the center line that can use the zone with described with the center of described revisal lens.

9, image blur correction device according to claim 1 is characterized in that,

Described rotation has with drive division: rotation with magnetite with according to the rotation coil that disposes with the relative mode of magnetite with described rotation,

When described optical axis direction is observed, described turning axle and described rotation are with the distance between the center of coil, than the distance between the center of described turning axle and described revisal lens.

10, image blur correction device according to claim 1 is characterized in that,

Described rotation has with drive division: rotation with magnetite with according to the rotation coil that disposes with the relative mode of magnetite with described rotation,

When described optical axis direction is observed, described turning axle and described rotation are with the distance between the inspection center of position detecting element, and be shorter with the distance between the center of coil than described turning axle and described rotation.

11, image blur correction device according to claim 1 is characterized in that,

Described turning axle is configured in the described zone of directly advancing to use between drive division and the described revisal lens.

12, image blur correction device according to claim 1 is characterized in that, also possesses directly to advance to use position detecting element, detects the described position of directly advancing the described lens holding member on the direction,

Describedly directly advance to have with drive division: directly advance with magnetite with according to directly advancing with what the relative mode of magnetite disposed directly to advance to use coil with described,

Described turning axle and described directly advance with the distance between the inspection center of position detecting element than described turning axle and described directly advance with the distance between the center of coil short.

13, image blur correction device according to claim 1 is characterized in that,

Also possess the flexible printing substrate, for to described rotation drive division service voltage, and be electrically connected with drive division with described rotation,

Described flexible printing substrate has: be fixed on described lens holding member the 1st fixed part, be fixed on the 2nd fixed part of described the 2nd holding member and link the described the 1st and the 2nd fixed part and flexible flexible pars convoluta,

Described flexible pars convoluta is configured in the described rotation shaft side of described revisal lens.

14, image blur correction device according to claim 1 is characterized in that,

Described revisal lens configuration in described rotation with drive division with describedly directly advance with the zone between the drive division.

15, image blur correction device according to claim 1 is characterized in that,

Also possess at least 3 support portions, not only keep rotary part, make its with respect to rotation holding member can with the face of described light shaft positive cross in move, and limit it to two side shiftings along the direction of described optical axis,

Wherein said rotary part is the side that can move along described sense of rotation that is retained in described lens holding member and the 1st holding member,

Described rotation holding member is a side of the described rotary part of maintenance in the described the 1st and the 2nd holding member.

16, image blur correction device according to claim 15 is characterized in that,

Described at least 3 support portions have respectively: are formed at the 1st support portion on the described rotary part and are formed on the described rotation holding member and can embed the 2nd support portion of described the 1st support portion from direction with described rotating shaft direct cross,

Side in the described the 1st and the 2nd support portion is a rhabodoid,

The opposing party in the described the 1st and the 2nd support portion is for embedding the roughly U font of described rhabodoid.

17, a kind of camera possesses:

The 1st lens combination is taken into along the light of the 1st optical axis;

Refractive optical system makes the direction that arrives the 2nd optical axis that intersects with described the 1st optical axis along the anaclasis of described the 1st optical axis incident;

The 2nd lens combination comprises the revisal lens that carry out image blurring correction, and is taken into the light that is reflected by described refractive optical system;

The described described image blur correction device of claim 1;

Image pickup part receives the light by described the 2nd lens combination;

Camera lens mirror bucket wherein disposes described the 1st lens combination, described refractive optical system, described the 2nd lens combination, described image blur correction device and described image pickup part; With

Shell keeps described camera lens mirror bucket.

18, camera according to claim 17 is characterized in that,

Describedly directly advance direction, with direction almost parallel perpendicular to the described the 1st and the 2nd optical axis.

19, a kind of manufacture method of image blur correction device, this image blur correction device has: the lens maintaining body, maintenance is contained in the revisal lens of optical system in order to carry out image blurring correction; Rotation holding member, with described lens maintaining body movably mode it is kept, this lens maintaining body with the face of the light shaft positive cross of the light that incides described revisal lens in, can move along the sense of rotation that with the turning axle that is roughly parallel to described optical axis is the circular arc at center, the manufacture method of this image blur correction device comprises:

The operation that the parts that make described lens maintaining body side move along the direction with described rotating shaft direct cross with respect to described rotation holding member;

To be used for rotatably linking the parts of described lens maintaining body side and the spindle unit of described rotation holding member, be installed on the parts of described lens maintaining body side and the operation of rotation holding member.

20, the manufacture method of image blur correction device according to claim 19 is characterized in that,

When described spindle unit is installed, described spindle unit is pressed into the side in the 2nd hole that is provided with on the 1st hole that is provided with on the parts of described lens maintaining body side and the rotation holding member.

Images